Answers
Primates, rodents & rabbits, crocodiles, and birds.
Explanation:
When looking at a cladogram, the red marks will refer to anything above it. Anything below a red mark will not have the featured attribute, but everything after it will have it.
In this case we are looking at having an amniotic egg. As you can see, the red line is in between amphibians and primates. Since cladograms work from left to right, we can say that sharks, ray-finned fish, and amphibians can not produce amniotic eggs, while...
Primes, rodents & rabbits, crocodiles, and birds can produce amniotic eggs.
Related Questions
You are interested in determining the genetic mutation that results in watermelon plants making fruits without seeds. You determine that plants that produce seedless watermelons have a deletion of the promoter in a gene called seed1. You determine that seed1 encodes for an activating transcription factor.
A. Is this mutation a gain of loss of funtion? Explain your answer.
B. Watermelon plants are diploid. What are the possible genotypes and phenotypes for this mutation? Write + for wild type and - for the mutant allele.
Answers
The phenotype for the wild type is that the watermelon plants produce fruits with seeds, whereas the phenotype for the homozygous mutant is that the plants produce seedless fruits.
A. This mutation is a loss of function mutation because the deletion of the promoter in the seed1 gene results in the loss of its function to activate transcription and produce seeds in watermelon plants.
B. Since watermelon plants are diploid, the possible genotypes and phenotypes for this mutation can be represented as follows:
- Wild type: +/+
- Heterozygous mutant: +/- (one copy of the wild type allele and one copy of the mutant allele)
- Homozygous mutant: -/- (two copies of the mutant allele)
The phenotype for the wild type is that the watermelon plants produce fruits with seeds, whereas the phenotype for the homozygous mutant is that the plants produce seedless fruits. The phenotype for the heterozygous mutant can vary depending on the dominance of the alleles, but it is likely that the plants would produce some seedless fruits and some fruits with seeds.
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The X chromosome in human cells consists of 20MB of information encoded on N=1.6×10 8
base-pairs in a DNA double helix molecule. The information is processed as mechanisms open one end of the double helix molecule and break base-pair bonds. Assume the opposite end remains closed and energy ε is needed to break a single base-pair. Index s(0≤s≤N) labels the site of a specific base pair starting from the opening end and pair s can break provided all pairs less than s are already broken (see figure for s=6 below where dashed lines represent broken bonds). Each broken bond pair along the molecular backbone can then adopt G possible orientations each of which are degenerate in energy (see curved arrows in figure for s=1 ). (a) If the DNA molecule is in thermal equilibrium with the body at temperature T, explain which ensemble is appropriate to model the thermodynamics of this system. (b) Write down the appropriate partition function, Z, for the system in terms of the sum over microstates. (c) To first approximation, setting G=1, determine an expression for the expected energy, ≪E≫, of the molecule in the low temperature limit where T<ε/k B
. (d) Hence find the expected number of broken bonds, ⟨s≫⟩, in the low temperature limit. (e) If the average binding energy of a base pair is 79 kJ/mol, does the body temperature T= 310 K, constitute the high or low temperature limit for ⟨⟨s≫ ? What does this imply for the stability of the DNA molecule in the body? S
Answers
If the DNA molecule is in thermal equilibrium with the body at temperature T, canonical ensemble is appropriate to model the thermodynamics of this system.
(a) The correct ensemble for modeling the thermodynamics of the DNA molecule is the canonical ensemble.
(b) The partition function, Z, of the system in terms of the sum over microstates is given by
Z=∑s
=1NGB(s)exp(−εskBTT)
(c) In the low temperature limit where T<ε/kB, the expression for the expected energy, ≪E≫, of the molecule to the first approximation and for
G=1 is≪E≫
=Nε−ε⟨s⟩d⟨s⟩dT
(d) By taking the derivative of E with respect to T and setting it to 0, the expected number of broken bonds, s, can be obtained.
s = N(1−exp(−εkBTT))
(e) For T=310 K, the average binding energy of a base pair is 79 kJ/mol. This temperature is much higher than the low-temperature limit, implying that the DNA molecule in the body is stable. This means that the expected number of broken bonds will be very low.
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which era below is incorrect?
help please <3
Answers
Answer:
mesozoic
Explanation:
the other eras are ancient eras.
What would increase the amount of oxygen unloaded by hemoglobin into peripheral tissues?
Answers
Decreased pH would increase the amount of oxygen unloaded by hemoglobin into peripheral tissues.
What is hemoglobin?The iron-containing oxygen-transporting metalloprotein known as hemoglobin.The abbreviations Hb or Hgb, is found in the red blood cells of almost all vertebrates as well as some invertebrate organs. The oxygen from the respiratory organs is transported to the rest of the body by hemoglobin in the blood.Iron deficiency anemia is characterized by low hemoglobin that is brought on by low iron levels. Low hemoglobin is most frequently caused by a diet that is inadequate in iron. Low hemoglobin levels can cause headaches, exhaustion, and pale complexion. Surgery, iron therapy, and iron supplementation are all options for treating low hemoglobin.Red blood cells include the protein hemoglobin, which transports oxygen to your body's organs and tissues and carbon dioxide from those tissues back to your lungs. A low red blood cell count if a hemoglobin test finds that your hemoglobin level is lower than normal (anemia).Learn more about hemoglobin here:
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Scientists have a theory about the relationship between climate and biodiversity. Which best describes this theory? Warmer climates promote higher biodiversity, allowing plants to grow year-round. This supports more organisms that rely on plants. Colder climates promote higher biodiversity, reducing the competition among organisms for food. This supports stronger organisms that live longer. Warmer climates promote higher biodiversity because they tend to receive more rainfall. This provides a source of water for more organisms. Colder climates promote higher biodiversity because they are usually larger in size. This provides space for more organisms.
Answers
A Warmer climates promote higher biodiversity, allowing plants to grow year-round. This supports more organisms that rely on plants.
What are the 4 types of climate?Tropical.Dry.Temperate.Continental.Polar.
Thus, option "A" is correct, Warmer climates promote higher biodiversity, allowing plants to grow year-round.
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Answer:
a
Explanation:
Scenario: Models are often used to observe phenomena that are too small to observe naturally. Chris created the model provided as a project for his science class. He said it’s a model of H3BO3. His group partner, Cindy, however, said that she thinks the model looks like H3PO3.
Prompt: Write a scientific explanation that justifies which compound this model best represents.
HELPPPPPPP!!!!
Answers
The ash color is the atom of boron, the black atoms are the oxygen atoms and the white atoms are the hydrogen atoms.
What is a model?We know that a model has to do with the representation of a substance. When we have a model, we could use the model as a way to explain or we use the model as a tool for prediction.
We have in this case the compound that has been shown by the use of the formula that we have in the question that is able as \(H_{3} PO_{3}\). We know that we can be able to show this from the image of the model as the various colors does correspond to different atoms.
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1) What is the rationale for experimental ablation method?
2) Explain the significance of the sham-lesion procedure.
2a) Explain how the activity of a brain region can be temporarily inactivated.
4) Compare and contrast the visual functions of rods and cones.
4a) Explain how the receptor potential produced in a photoreceptor by light generates action potentials within the retina.
6) Compare the anatomy and function of the dorsal and ventral streams.
6a) Describe the physical and psychological properties of sound.
7) Describe how the organ of Corti transduces sound waves into electrical potentials.
7a) Describe the neural pathways by which auditory signals for audition reach the cortex.
8) Explain how the brain codes for the spatial location of sound.
Answers
1) The experimental ablation method is a way of demonstrating the function of a particular brain region by removing it or inactivating it temporarily or permanently.
2) The sham-lesion procedure involves a similar surgical procedure to that of an ablation but without damaging the target area.
2a) Inactivation of a brain region involves the use of a drug or some other agent to temporarily disable or block activity within a particular region of the brain.
4) Rod cells are the primary photoreceptors for low-light conditions and are found in the outermost layer of the retina
4a) The generation of action potentials in the retina begins when a photon of light strikes a photoreceptor cell.
6) The dorsal stream is responsible for processing the object's location and motion.
6a) Sound is a physical phenomenon that is produced by the vibration of an object.
7) The organ of Corti is the sensory organ in the inner ear that is responsible for transducing sound waves into electrical potentials.
7a) The neural pathways by which auditory signals for audition reach the cortex begin in the cochlea.
8) The brain codes for the spatial location of sound by using several cues, including interaural time differences, interaural level differences, and spectral cues.
1) The rationale for this technique is that by making an animal brain-damaged in some particular region, researchers can learn more about how that region is involved in behavior. The major advantage of experimental ablation is that researchers can gain insights into what a particular brain region does by examining how a damaged brain differs from a normal one.
2) The purpose of this procedure is to create a control group with identical surgery minus the removal or inactivation of the target region. This allows researchers to control for any nonspecific effects of the surgical process.
2a) For instance, the drug muscimol, which is a GABA agonist, can be used to temporarily inactivate a specific brain area by binding to GABA receptors in that area.
4)Cone cells are photoreceptors that are responsible for color vision, visual acuity, and are found in the center of the retina. Rods are more sensitive to light than cones, and they provide better vision in dim light, while cones provide better vision in bright light.
4)The resulting receptor potential then travels from the photoreceptor cell to the bipolar cell, where it is further amplified. The resulting signal is then transmitted to the ganglion cell, which generates an action potential.
6)It sends information from the occipital lobe to the parietal lobe. In contrast, the ventral stream processes object recognition, sending information from the occipital lobe to the temporal lobe.
6a)The sound waves are propagated through a medium such as air, water, or a solid. The psychological properties of sound include pitch, loudness, and timbre.
7)When the basilar membrane vibrates in response to sound waves, the hair cells in the organ of Corti are also set into motion, generating an electrical signal that is transmitted to the brain.
7a) The auditory nerve carries information from the cochlea to the brainstem, where it is processed and sent to the thalamus. From the thalamus, the information is relayed to the auditory cortex in the temporal lobe.
8)The auditory cortex integrates these different cues to determine the location of a sound in space.
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What effect does ionizing radiation have on the atmosphere ?
i need three at the least
Answers
Ionizing radiation can the following three effects on the atmosphere:
Creation of ionsFormation of free radicalsOzone depletionWhat effect does ionizing radiation have on the atmosphere?Ionizing radiation can have several effects on the atmosphere, including:
Creation of ions: Ionizing radiation can break apart molecules in the atmosphere, such as nitrogen and oxygen, creating charged particles called ions. These ions can then react with other molecules in the atmosphere, leading to the formation of new compounds.
Formation of free radicals: Ionizing radiation can also generate free radicals, which are highly reactive atoms or molecules that can participate in chemical reactions. These free radicals can react with other molecules in the atmosphere, leading to the formation of new compounds and potentially causing damage to biological organisms.
Ozone depletion: High-energy ionizing radiation can break apart ozone molecules in the atmosphere, leading to a reduction in the amount of ozone in the ozone layer. This can have significant consequences for life on Earth, as the ozone layer helps to protect the planet from harmful ultraviolet radiation from the sun. Ozone depletion can lead to an increased risk of skin cancer, cataracts, and other health problems in humans and animals.
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which statement is correct about a muscle contraction? responses myosin heads attach to sites on actin filaments.
Answers
Answer:
The globular heads of myosin bind actin, forming cross-bridges between the thick and thin filaments.
Electrons have a charge of
Answers
Answer:
-1
Explanation:
Which of the following adds to the greenhouse effect and global warming?
Answers
Answer:
The gases that contribute to the greenhouse effect include water vapor, carbon dioxide (CO2), methane, nitrous oxides, and chlorofluorocarbons (CFCs). On Earth, human activities are changing the natural greenhouse
Explanation:
mark brianiest
need help asap will mark brainliest
Answers
Answer:
if i were you I would write about the Nile river because it's supposed to be one of the biggest rivers and if u would I would look more about it on what it says but not the exact words ok.
Explanation:
have a good day sorry if this didn't help
READING TOOL Make Connections Fill in the concept map to show the
organization of a chloroplast. Then below, answer the questions to describe how the
different parts are related to each other.
Chloroplast
Answers
Answer:
Chloroplast -----membranes----------internal
---------external
----- Tylacoids-------------Grana
----- Stroma
You will find the complete concept map in the attached files
Explanation:
Chloroplasts are composed of three membrane systems. Surrounding the organelle we can find the external membrane. To the interior of the organelle, there is the internal membrane. These two systems are separated by the intermembrane space. According to the endosymbiotic theory, the presence of a double membrane is the characteristic that reinforces the idea of a prokaryote being phagocyted by a eukaryote. The internal membrane looks identical to the membrane of bacterias, while the external membrane looks like the eukaryotic one.
Thylakoids are located in the interior of the organelle. These structures are also surrounded by a membrane, and in their interior, there is the thylakoid space. Each thylakoid looks like a hollow sac, and together with other thylakoids, they form piles, known as grana. Different piles or grana connect to each other by longer membranes. These internal structures together compose the third system of membranes. The photosynthetic pigments are located in the thylakoids, where it occurs the light-dependent reactions.
Surrounding the thylakoids there is a dense liquid called the stroma. Here takes a place the Calvin cycle.
what do these observations suggest about the location of protein x in the plasma membrane? since proteolytic enzymes cannot digest protein x unless the plasma membrane is disrupted, protein x is polytopic and embedded in the lipid bilayer with several intracellular domains. since proteolytic enzymes cannot digest protein x unless the plasma membrane of intact cells is disrupted, protein x associates with the inner surface of the membrane. proteolytic enzymes cannot fragment protein x in intact erythrocytes; thus, protein x is embedded in the lipid bilayer and does not have any extracellular domains. proteolytic enzymes cannot digest protein x unless the plasma membrane is disrupted; thus, protein x is monotopic and embedded in the inner leaflet of the lipid bilayer. proteolytic enzymes cannot fragment protein x in intact erythrocytes; therefore, protein x associates with the membrane transiently and is primarily located in the cytosol.
Answers
Based on the observation that proteolytic enzymes cannot digest protein x unless the plasma membrane is disrupted, this suggests that protein x is embedded in the lipid bilayer.
Locating protein x in the plasma membrane:
The fact that protein x cannot be fragmented in intact erythrocytes suggests that it does not have any extracellular domains. Therefore, it is likely that protein x is polytopic and embedded in the lipid bilayer with several intracellular domains. It is also possible that protein x is monotopic and embedded in the inner leaflet of the lipid bilayer. However, it is unlikely that protein x associates with the membrane transiently and is primarily located in the cytosol, as this would not explain why proteolytic enzymes cannot digest it unless the plasma membrane is disrupted.
Based on the observations provided, it suggests that protein X is embedded in the lipid bilayer of the plasma membrane and does not have any extracellular domains. This is because proteolytic enzymes cannot fragment protein X in intact erythrocytes, indicating that it is protected by the lipid bilayer. The fact that proteolytic enzymes can only digest protein X when the plasma membrane is disrupted supports this conclusion.
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100 POINTS PLEASE ANSWER- the answer is not c or d CONFIRMED
The diagram illustrates the process of developing genetically modified corn.
What occurs at step 3 in the diagram?
The restriction enzymes cut the isolated DNA into fragments.
The gene of interest is inserted into an expression cassette.
The recombinant DNA is inserted into the host cell nucleus via a vector.
The expression cassette is inserted into a plasmid for cloning.
Answers
Answer:
B The gene of interest is inserted into an expression cassette.
Explanation: I hope this helps you.
(i believe this is the diagram that goes to the question)
The gene of interest is inserted into an expression cassette that occurs at step 3 in the diagram. Therefore, option B is correct.
How is genetically modified corn produced?The GMO corn Bacillus thuringiensis (Bt) produces proteins that are poisonous to some insect pests but not to humans, pets, or cattle.
The most popular bacteria for GM plants is known as Agrobacterium tumefaciens. The desired gene is introduced into the bacterium, and the bacterial cells then introduce the new DNA into the plant cells' genome. The successfully incorporated plant cells are then cultivated to produce a new plant. This is how genetically modified corn is produced.
Thus, step 3 in the process of developing genetically modified corn is the gene of interest inserted into an expression cassette. Therefore, option B is correct.
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Your question is incomplete, most probably the full question is this:
The diagram illustrates the process of developing genetically modified corn.
The diagram illustrates the process of developing genetically modified corn. What occurs at step 3 in the diagram?
The restriction enzymes cut the isolated DNA into fragments.The gene of interest is inserted into an expression cassette.The recombinant DNA is inserted into the host cell nucleus via a vector.The expression cassette is inserted into a plasmid for cloning.The image is attached below:
Double-stranded viral DNA is incorporated into a host cell as a _____. A. promoter B. provirus C. transposon D. lac E. homeoboxes
Answers
Answer:
b
Explanation:
Provirus B
A provirus made of double-stranded viral DNA gets incorporated into the genome of the host cell. The incorporation of viral DNA into the DNA of the host cell takes place during the lysogenic cycle of viral replication. Once integrated, the viral DNA is replicated during cell division alongside the DNA of the host cell and can then be translated and transcribed by the machinery of the host cell to make viral proteins. The provirus can hang about in the host cell's genome in a dormant state for a long time before being activated, which starts the lytic cycle and causes viral replication.
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The hormones of the hypothalamus that stimulate the anterior pituitary to release hormones are called ______.
Answers
The hormones of the hypothalamus that stimulate the anterior pituitary to release hormones are called releasing hormones.
The hypothalamus produces several releasing hormones that travel through the hypophyseal portal system to the anterior pituitary gland. These releasing hormones stimulate the anterior pituitary to release specific hormones into the bloodstream, which then act on target tissues and organs throughout the body to regulate various physiological processes.
Examples of releasing hormones include gonadotropin-releasing hormone (GnRH), which stimulates the release of luteinizing hormone (LH) and follicle-stimulating hormone (FSH), and thyrotropin-releasing hormone (TRH), which stimulates the release of thyroid-stimulating hormone (TSH).
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By 40-60 years after farm fields had been abandoned, the amount of herbaceous plants decreased. Give one reason why the amount of herbaceous plants decreased as the amount of trees increased.
Answers
Answer:
Explanation:
Herbaceous plant are plants that lack woody stem, they include mostly annual crop and perennial crop.
The reduction in the population of herbaceous plant over the years is due to competition. The competition intensity is usually high due to limited supply of resource and the woody plant out compete the herbaceous plants leading to a gradual decline in the population.
Competition intensity is usually high during dry season when herbaceous biomass and soil water content were at the lowest level at this time the herbaceous plant finds it difficult to thrive well with the limited resource while the woody plant utilizes the little resource and keeps on thriving. All this reduce herbaceous population after several years of the field been abandoned.
Which is given as an explanation for how the Paleozoic supercontinent ice
cap melted?
A. Volcanic eruptions decreased, raising the temperature.
B. Carbon dioxide levels decreased, raising the temperature.
C. Plants dying off increased the greenhouse effect.
D. Plant life turned oxygen into carbon dioxide, increasing the
temperature.
Answers
An example for the Paleozoic supercontinent ice cap melted is plants dying off increased the greenhouse effect. The correct option is C.
What was Paleozoic era?The Paleozoic Era, which lasted 541 million to 251.9 million years, was a period of tremendous change on Earth. With the breakup of one landmass and the formation of another, the era began.
Plants became widely distributed. Then the first vertebrate animals arrived on the scene.
Thus, the correct option is C. Plants dying off increased the greenhouse effect.
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Arrange the steps required of all DNA-repair mechanisms in chronological order. Note: not all steps will be used. recognize the damaged base(s) repair the gap with DNA polymerase and DNA ligase facilitate strand invasion remove the damaged base(s) perform DNA recombination
Answers
The steps required in chronological order for DNA repair mechanisms are as follows:
1. Recognize the damaged base(s)
2. Remove the damaged base(s)
3. Repair the gap with DNA polymerase and DNA ligase
4. Perform DNA recombination
5. Facilitate strand invasion
It's important to note that not all steps may be involved in every DNA repair mechanism. The specific order and combination of these steps can vary depending on the type of DNA damage and the repair pathway involved.
Initially, the damaged base(s) need to be recognized by specific DNA repair proteins. These proteins identify and locate the damaged regions in the DNA molecule.
Next, the damaged base(s) are removed. There are different mechanisms for this step depending on the type of DNA damage. For example, base excision repair (BER) involves the removal of a single damaged base, while nucleotide excision repair (NER) removes a stretch of nucleotides containing the damage.
After the damaged base(s) are removed, the gap in the DNA strand is repaired. DNA polymerase synthesizes a new complementary strand to fill the gap, and DNA ligase seals the nick to ensure the integrity of the DNA molecule.
In some cases, DNA recombination may be necessary for DNA repair. This step involves the exchange of genetic material between different DNA molecules, which can help in repairing damaged regions.
Lastly, facilitating strand invasion may occur during certain repair processes, such as homologous recombination. This step involves the invasion of a homologous DNA molecule to facilitate repair and exchange of genetic material.
It's important to remember that not all of these steps are used in every DNA repair mechanism. The specific order and involvement of these steps depend on the particular repair pathway and the type of DNA damage being repaired.
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How are condensation and hydrolysis related?
A. Hydrolysis adds water to build disaccharides from monosaccharides while condensation removes water to break disaccharides into monosaccharides.
B. Hydrolysis removes water to build disaccharides from monosaccharides while condensation adds water to break disaccharides into monosaccharides.
C. Condensation adds water to build disaccharides from monosaccharides while hydrolysis removes water to break disaccharides into monosaccharides.
D. Condensation removes water to build disaccharides from monosaccharides while hydrolysis adds water to break disaccharides into monosaccharides.
Answers
Lori is a vegan who believes she gets all the nutrients she needs from her diet. She has never taken supplements, even when she was pregnant. Her baby, Mason, was born full-term, but with a small portion of his spinal cord protruding through his vertebrae, resulting in partial paralysis of his legs. This neural tube defect, called , may have been caused by Lori's insufficient intake of during pregnancy. This micronutrient is necessary for regenerating the active form of .
Answers
Answer:
The condition is called "Spinal Bifida", caused by lack of vitamin B12 which helps regenerate the active form of folate.
Explanation:
Because Lori is a vegan, her vitamin B12 intake which comes from animal products such as meat, is not enough. She has to take supplements to make up for the lack of it in her diet.
As stated in the question, this lack of vitamin B12 causes her child to have a defect in his spinal cord called Spinal Bifida that defines a spinal cord or spine that has not fully developed. The vitamin B12 is necessary for regenerating the active form of folate.
I hope this answer helps.
aminoacyl-trna synthetase is an enzyme whose function is to _____.
Answers
Answer:plays a critical role in protein synthesis,
Explanation:
Aminoacyl-tRNA synthetase is an enzyme whose function is to attach the appropriate amino acid to its corresponding transfer RNA (tRNA) molecule, creating an aminoacyl-tRNA complex that will be used in protein synthesis.
What is Aminoacylation?Aminoacylation, also known as tRNA charging, is a biochemical process in which an amino acid is attached to its corresponding transfer RNA (tRNA) molecule. This process is catalyzed by the enzyme aminoacyl-tRNA synthetase, which recognizes the specific amino acid and the corresponding tRNA molecule that carries the anticodon sequence for that amino acid.
Aminoacylation is a crucial step in the process of protein synthesis, as the charged tRNA molecule brings the amino acid to the ribosome during translation, allowing the amino acid to be incorporated into the growing polypeptide chain.
The accuracy and efficiency of aminoacylation are critical for ensuring that proteins are correctly synthesized, as errors in aminoacylation can lead to the misincorporation of amino acids and the synthesis of non-functional or improperly folded proteins.
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Please help ASAP please, I can't answer these questions please help
How does Sea walnuts impact humans?
How to stop Sea Walnuts from spreading and How Sea walnuts can be managed?
3 benefits that will occur if Sea walnuta is removed.
Please helo me I have no idea how to answer these.
Answers
Answer: Sea walnuts are marine invertebrates. They belong to the genus Mnemiopsis.
Explanation:
These animals have stinging tentacles like jelly fish and they often cast up or come to the sea shores where if they come in contact with humans can harm them by stinging.
The barrier if kept along the side of the sea shore and not allowing humans to reach to the shore can help in preventing the harm from these animals. The introduction of the predatory animals in the sea can also help in reducing their population.
The three benefits for removing the sea walnut:
1. The population of other species will increase as sea walnut is an invasive species.
2. The balance of the marine ecosystem can be maintained.
3. Humans can be protected from the harm caused by these animals.
State 6 properties of matter that are independent of sample size.
Answers
➢ A size independent property is a physical property that does not change when the size of an object changes.
➢ Examples of size independent properties:
➢ Density, Color, State of Matter.
Which human excretory organ breaks down red blood cells and synthesizes urea?
A) lung
B) kidney
C) skin
D) liver
Answers
Liver is human excretory organ which breaks down red blood cells and synthesizes urea. The correct answer is D) liver.
The liver is an important excretory organ in the human body that helps in the breakdown of red blood cells, stores vitamins and minerals, and synthesizes urea. It also plays a vital role in detoxification and metabolism of drugs and other substances in the body.
The kidneys, on the other hand, are primarily responsible for filtering the blood and removing waste products such as urea, creatinine, and excess water from the body, which are then eliminated in the urine.
The lungs are responsible for gaseous exchange, i.e., they take in oxygen and release carbon dioxide, while the skin plays a role in regulating body temperature and eliminating small amounts of waste products through sweat glands.
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I really need help I'm about to fail biology. I included the background story and question.
Answers
Frequency of tuskless elephants in females: 78/260 = 0.3 (30%), Frequency of tuskless elephants in males: 27/270 = 0.1 (10%) and Overall frequency of tuskless elephants: (78+27)/530 = 0.2 (20%).
What is Frequency?Frequency is a measure of how often a periodic event occurs in a given period of time. It is typically measured in hertz (Hz), which is the number of occurrences of a repeating event per second. Frequency is an important concept in physics, engineering, and many other fields of study. Frequency can also be used to describe the rate at which a signal or waveform is changing over time. In audio applications, this is often referred to as the pitch of a sound. Frequency can also be used to describe the rate of a periodic process or system, such as a heartbeat or a vibrating string.
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50 POINTSSSS PLEASE HELPPPPP EASYYYYY
Answers
Answer:
6. Convection 7. conduction 8.Convection Hope this helps
Explanation:
The frequency of two alleles in a gene pool is 0.17 (A) and 0.3 (a.) assume that the population is in Hardy-Weinberg equilibrium calculate the percentage of heterozygous individuals in the population.
28% 1% 31% or 46%
Answers
The correct answer based on the calculation would be approximately 10.2% heterozygous individuals in the population. The correct answer is 10%.
To calculate the percentage of heterozygous individuals in a population in Hardy-Weinberg equilibrium, we can use the formula 2pq, where p represents the frequency of one allele (A) and q represents the frequency of the other allele (a).
Given that the frequency of allele A is 0.17 and the frequency of allele A is 0.3, we can calculate:
p = 0.17
q = 0.3
Now, we can substitute these values into the formula:
2pq = 2 \(\times\) 0.17 \(\times\) 0.3 = 0.102
Therefore, the percentage of heterozygous individuals in the population is 0.102 \(\times\) 100 = 10.2%.
Based on the given answer choices, none of them exactly match the calculated value.
The closest option is 1%, but it does not match the calculated percentage accurately. It's possible that there may be a typographical error or slight deviation in the provided answer choices.
The correct answer based on the calculation would be approximately 10.2% heterozygous individuals in the population.
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Question
The frequency of two alleles in a gene pool is 0.17 (A) and 0.3 (a.) assume that the population is in Hardy-Weinberg equilibrium calculate the percentage of heterozygous individuals in the population.
28% 10% 31% or 46%
how does the death’s head hawk moth steal honey from bees?
Answers
The Death's head hawk moth (Acherontia species) has developed a unique strategy to steal honey from bees. It employs mimicry to enter beehives undetected.
The moth possesses markings on its thorax resembling the face of a predator or a beekeeper, hence its name "death's head." By resembling a potential threat or a familiar figure, the moth is able to approach beehives without being attacked by guard bees.
Once inside the hive, the moth uses its specialized proboscis to access the honeycombs and feed on the honey. Remarkably, it can also mimic the scent of bees to further deceive the colony.
The moth's thick cuticle provides protection against bee stings, allowing it to extract honey without significant harm.
Although the exact mechanisms of mimicry and scent deception are not fully understood, this unique behavior of the Death's head hawk moth demonstrates its ability to exploit the defense mechanisms of bees and steal their valuable honey.
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