______structures are fully functional, show evidence of a common ancestor, and may or may not have
the same function in different species.
Answers
Answer:
Homologous
Explanation:
Homologous structures are similar organs or structures that are found in different animals that suggest they come from a common ancestor. This is evidence of evolution.
The structures might not necessarily look identical and might not perform the same function. For example, the flippers of a dolphin, the wings of a bird, the legs of a dog, and the arms of a human are considered homologous structures.
Related Questions
The United States generally uses the English system of measurement. Name two items you might purchase in a grocery store that are sold in metric (SI) units. Include the SI unit used for this product? answer 3-4 sentences
Answers
Answer: Two items you might purchase in a grocery store that are sold in metric units are bread and boxes of cereal.
Explanation:
Many factors can affect the toxicity of a contaminant. The characteristics of the ecosystem where the contaminant is released constitutes one of these factors. For each of the following statements, identify another factor that affects toxicity.
a) Certain plants can absorb heavy metals that are toxic to humans but that do not harm the plants themselves.
b) As the result of a hydrochloric acid spill, all the amphibians in the spill area quickly died off.
c) All his life, Max has lived near a factory that emits toxic fumes. His health has been affected by certain pollutants in the smoke.
Answers
For each statement provided, the identified factor that affects toxicity is as follows: a) bioaccumulation in plants, b) direct chemical toxicity, and c) long-term exposure to pollutants.
a) In the case of certain plants absorbing heavy metals that are toxic to humans but not harmful to the plants themselves, the factor that affects toxicity is bioaccumulation. Some plants have the ability to absorb and accumulate heavy metals from the environment without experiencing harmful effects. When humans consume these plants, they can be exposed to high levels of heavy metals, leading to potential toxicity.
b) In the scenario where all amphibians in the spill area quickly died off after a hydrochloric acid spill, the factor that affects toxicity is the direct chemical toxicity of hydrochloric acid. Hydrochloric acid is highly corrosive and can cause severe damage to tissues upon contact. The rapid death of amphibians suggests that the direct exposure to hydrochloric acid resulted in their mortality.
c) The long-term exposure to pollutants emitted by the factory and its impact on Max's health indicates that the factor affecting toxicity is the duration and frequency of exposure. Continuous exposure to toxic fumes from the factory over a prolonged period can lead to adverse health effects. The cumulative effect of repeated exposure increases the potential for pollutants to cause harm to Max's health.
It's important to note that toxicity can be influenced by various other factors such as dose, individual susceptibility, chemical interactions, and environmental conditions. The specific circumstances surrounding each case will determine the relevant factors affecting toxicity.
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Hey,Daily Check up are you okay? :)
Answers
Answer:
im actually doing really bad but i mean, thats life.. how are you?<3
Explanation:
Why would it be important to understand what controls the number and types
Prior to the 1960s, what did people think controlled the number of herbivores in a food web?
What conclusion did Paine arrive at after seven years?
What does he mean by his claim that some species are more equal than others? PLEASEE ANSWER
Answers
Because they are of not de same character and specie
Which mineral mostly forms through chemical precipitation?
O A. Clay
• B. Salt
• C. Aluminum
O D. Silicon
Answers
Answer:
The answer to your question is • B. Salt
Explanation:
The rain that falls on the land contains some dissolved carbon dioxide from the surrounding air. This causes the rainwater to be slightly acidic due to carbonic acid. The rain physically erodes the rock and the acids chemically break down the rocks and carries salts and minerals along in a dissolved state as ions.
I hope this helps and have a wonderful day!
Marty's genotype for color blindness was: Question 2 options: XCX XCXC XY XCY
Answers
The name sounds male so that should be right.
Marty's genotype for color blindness depends on gender. If Marty is a male, then the genotype is \(X^ {c}Y\) , but if Marty is a female, then the genotype is \(X^{c}X^{c}\) . This color blindness is an X-linked recessive trait.
What is the X-linked trait?There are two types of genes: some are present on the autosomal chromosomes, and some are present on the X and Y chromosomes. The genes that are present on the autosomal chromosomes are called autosomal genes, and the genes present on the X chromosome are called sex-linked genes.
Color blindness is a sex-linked recessive disorder, which means that a male requires only one recessive copy of the gene. The female can be a carrier if she has a single copy, but if she has two copies, she will be infected with this disease.
Hence, if Marty is a male, then the genotype is \(X^ {c}Y\), but if Marty is a female, then the genotype is \(X^{c}X^{c}\). This color blindness is an X-linked recessive trait.
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select the questions that can be explored through the principles of biological evolution. how did cetaceans transition from terrestrial to aquatic environments? why do some organisms tend to fossilize more readily than others? why can viruses, such as influenza, be difficult to fight? how do new species arise in novel environments? how do you identify a mutation in dna?
Answers
We may investigate queries about the variety and evolution of species across time using the fundamentals of biology. All of the questions listed above have to do with evolutionary processes including speciation, adaptation, and the fossil record.
The process of evolution describes how many types of living things grow and alter over time. Natural selection, which favours particular genetic features that offer an advantage in a particular environment, is what propels it. This process results in the diversification and speciation of many species when populations of organisms slowly alter and adapt to their environment. The variety of life on Earth and the relationships between various species are both explained by evolution. It is a fundamental idea in biology and has wide-ranging effects on industries including healthcare, agriculture, and conservation.
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What solution can be used to detect blood that has been cleaned or cannot be seen?
Answers
Answer:
Fluorescein is a presumptive blood test for latent bloodstain detection. It has been used in forensic applications to reveal trace amounts of blood. Traces of latent blood can be detected even after repeated cleansing of the crime scene.
Explanation:
- Eijiro <3
The cladogram above diagrams the evolutionary history of chordates. Which structural adaptation led to greater motion and a more diverse diet? A) lungs B) true bone C) vertebrate D) jaws and paired appendages
Answers
Answer:
D) Jaws and paired appendages
Explanation:
Jaws provided the ability to churn and grind food, while paired appendages enabled various locomotive methods such as running, walking, hopping, etc.
Base your answer to the following question on the chart below
and on your knowledge of biology.
A
B
C
The diversity of multicellular Simple, single-celled Multicellular organisms
organisms increases.
organisms appear.
begin to evolve.
According to most scientists, which sequence best represents the
order of biological evolution on Earth?
A. A - B - C
B. B - A - C
В. B - C - A
C. C - A - B
Answer Choice :
a. A
b. B
c. C
d. D
Answers
According to most scientists, the sequence best represents the order of biological evolution on Earth is b. B - A - C.
This is because simple, single-celled organisms appeared first, followed by the evolution of multicellular organisms, and finally the diversity of multicellular organisms increased. This sequence aligns with the theory of evolution by natural selection proposed by Charles Darwin, which suggests that life on Earth evolved from a common ancestor over millions of years through a process of natural selection.
Single-celled organisms such as bacteria and archaea are believed to have appeared on Earth over 3.5 billion years ago, followed by the emergence of multicellular organisms around 1 billion years ago. The diversification of multicellular organisms, resulting in the evolution of various plant and animal species, took place over millions of years. In summary, the correct answer is B. B - A - C, the sequence best represents the order of biological evolution.
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what does the speed of the colors mixing tell you about the speed of the molecules in hot and cold water
Answers
Answer:
When colors get sped up they blend meaning their molocules spread because it is getting heated up becuase of moving so fast.
Explanation:
best description of cellular respirarion
Answers
It's where the cell reproduces and forms more cells
In terms of genetic composition, how similar are offspring produced by sexual reproduction to their parents? Write in 2 to 3 sentences.
Answers
Answer:
That Is is the Word is Sex The sex is the Same only way for if u have a Baby
which of the following is a good reason for leaders to participate in an exercise?
Answers
A good reason for leaders to participate in an exercise is that it enables them to become better communicators, more decisive and efficient, and better problem solvers.
What are exercises?Exercises are simulations of real-life events or situations intended to prepare personnel and teams for unexpected occurrences. They are conducted to assess and improve an organization's ability to respond to a disaster or emergency and to identify areas for improvement.A good reason for leaders to participate in an exercise is that it provides them with an opportunity to develop their skills and abilities.
Here are some reasons why leaders should participate in exercises:
It enables them to become better communicators. Exercises provide an opportunity for leaders to improve their communication skills by practicing effective communication during a crisis. They learn how to give clear instructions, listen carefully to others, and convey messages to different audiences.It makes them more decisive and efficient .Exercises allow leaders to practice making decisions under pressure. By doing this, they become more confident and efficient in their decision-making abilities, which is critical during an emergency or crisis.It enables them to become better problem solvers.Exercises provide leaders with an opportunity to practice problem-solving in a safe environment. This helps them to identify potential problems and develop solutions before they become actual problems.#SPJ11
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which disease could be described as infectious? responses cerebral palsy cerebral palsy mononucleosis mononucleosis hemophilia hemophilia schizophrenia
Answers
Among the options provided, mononucleosis can be described as an infectious disease. The correct answer is option b.
Mononucleosis is caused by the Epstein-Barr virus (EBV), and it is primarily transmitted through close contact with infected individuals, particularly through saliva. The virus can be spread through activities such as kissing, sharing utensils, or coughing. It is characterized by symptoms such as extreme fatigue, sore throat, fever, swollen lymph nodes, and enlarged spleen.
Cerebral palsy, hemophilia, and schizophrenia, on the other hand, are not infectious diseases. Cerebral palsy is a neurological condition often caused by brain damage before, during, or after birth. Hemophilia is a genetic disorder affecting blood clotting.
Schizophrenia is a complex mental disorder characterized by abnormal perceptions, thoughts, and behaviors. These conditions are not caused by infectious agents or transmitted from person to person.
The correct answer is option b.
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Complete Question
which disease could be described as infectious? responses
a. cerebral palsy
b. mononucleosis
c. hemophilia
d. schizophrenia
Mechanical stress on weight-bearing bones plays a large part in bone remodeling. What single factor plays the largest role in maintaining adequate bone strength?.
Answers
Mechanical stress on weight-bearing bones plays a large part in bone remodeling. Gravity is the single factor that plays the largest role in maintaining adequate bone strength.
It is the function of gravity to provide mechanical stress or load to the bones. It is the result of this mechanical stress that bones get the specific density that is required for support.
It is due to this reason that astronauts tend to exercise regularly in space so that their bone density can be maintained.
If bone density is not maintained by gravity, then bones can lose their strength, and hence a body will difficulty in support and movement.
Bones have the ability to reshape and remodel themselves. Hence, constant stress shall be applied to them for their strengthening. Gravity acts as a single factor that is continuous in applying stress to the bones.
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What was the conclusion from Mendel's two factor crosses?
Answers
Mendel's two-factor crosses lead to the conclusion that genes assort randomly into the gametes.
Each parent's cell has a pair of genes for each characteristic under investigation. One allele for the dominant phenotype and another for the recessive phenotype are present in the F1 from a crossover of two pure lines. The gene pair is made up of these two alleles.
This demonstrated that seeds are primarily spherical and yellow in color. In contrast, the seed's wrinkled appearance and green hue are recessive features. F1 offspring was later self-pollinated. Four distinct seed combinations were produced as a consequence for the F2 generation.
Tall plants were produced via the bridge of tall & dwarf plants. The hybridization plants were all very tall.
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Which of the following groups of compounds is hydrophobic?
A. Carbohydrates
B. Lipids
C. Proteins
D. Nucleic Acids
Answers
The hydrophobic group of compounds among the options is B. Lipids.
Lipids are hydrophobic compounds due to their high proportion of nonpolar carbon-hydrogen (C-H) bonds. Hydrophobicity refers to the aversion of nonpolar molecules to water, as water is a polar solvent.
Lipids are primarily composed of hydrocarbon chains, which consist mainly of carbon and hydrogen atoms. The carbon-hydrogen bonds in these hydrocarbon chains are nonpolar, meaning they do not have significant positive or negative charges.
As a result, lipids do not readily interact with water molecules, and they tend to aggregate or separate from water. This behavior is observed in various lipid-based substances such as fats, oils, and waxes. In contrast, carbohydrates, proteins, and nucleic acids contain polar functional groups that make them more hydrophilic (water-loving) and interact more readily with water molecules.
Therefore the correct option is option B.
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what is the balance between heat produce and heat lost in the body
Answers
Answer: Body temperature is the balance between heat produced in the body and heat loss from the body. Heat Production Heat Loss = Body Temperature.
Explanation:
Answer:it’s
The letter A
Explanation:
Question 3 options: Relate the new knowledge you have gained in muscle physiology to what you already know about neurons. Wave summation is an example of summation while multiple motor unit summation is an example of summation.
Answers
Muscles and neurons are two distinct types of tissues, yet their mechanisms are intertwined. Muscle physiology is the study of muscle tissue while neuron physiology is the study of nerve cells and their activity. Both muscle and neurons are responsible for generating and transmitting signals that control our body’s functions.
There are several ways in which muscle physiology relates to what we already know about neurons. For starters, both muscle fibers and neurons have an all-or-nothing principle that governs their activities. It means that when an electrical signal reaches a muscle or a neuron, it either triggers an action potential or does not trigger anything at all.
Another common aspect of muscle and neuron physiology is the concept of summation. Wave summation is an example of summation where multiple stimuli are delivered to a muscle fiber in quick succession, causing the fiber to contract more forcefully than if it were exposed to a single stimulus. Similarly, multiple motor unit summation is the phenomenon where several motor neurons coordinate to stimulate a muscle, causing it to contract more forcefully than it would with a single motor neuron.
In conclusion, the relationship between muscle physiology and neuron physiology is quite intricate. Understanding one often requires some understanding of the other. Wave summation and multiple motor unit summation are two such examples that illustrate the similarities between the two.
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In dogs, one pair of alleles determines coat color (dark and albino). Another pair of alleles determines hair length (short and long). Thus, each gamete will contain one of the coat-color alleles, C or c and one of the hair-length alleles, B or b. In repeated crosses of a specific dark, short-haired dog with an albino, long-haired dog, all the offspring were dark with short hair, as shown in cross I. However, in subsequent crosses of another dark, short-haired dog with a dark, long-haired dog, the ratios shown in cross II below were obtained. In cross II, the genotype of the dark, short-haired parent is which option choice. Answer A: CcBb Answer B: ccbb Answer C: CCBB Answer D: CCbb Answer E: ccBB
Answers
The dark, short-haired father in cross II has the genotype CcBb. Genotypes are the allelic combinations that translate phenotypes in genetic crosses.
What fur color does the dominant allele generate, and which allele is it?Always keep in mind that dominant alleles mask recessive alleles. The dog will seem black if the dominant allele is present. Recessive to the black allele is the brown allele. The dog cannot appear brown unless two copies of the recessive brown gene are present.
In dogs, is white fur dominant over black fur?We are aware that the allele is autosomal, that the mother is homozygous white, and that the father is heterozygous black. This knowledge allows us to conclude that black must be dominant in order to because the heterozygote exhibits the black phenotype, white.
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In an animal cells these organelles are much more than in plant cells. What is this organelle called?
A. Plant cell
B. Cell membrane
C. Vacuole
D. Cells
E. Mitochondria
F. Cell wall
G. Nuclear
H. Chloroplast
I . Large Vacuole
Answers
Answer:
H. chloroplast. I believe sorry if I'm wrong ;)
an onion (the part we eat) is not a root but an underground stem with fleshy leaves which is technically called a
Answers
An onion (the part we eat) is not a root but an underground stem with fleshy leaves which is technically called a tunicate bulb.
There are five main components in a genuine bulb. The basal plate, the main storage tissue, the tunic, the stem, the developing flower and leaf buds, the lateral buds, which develop into bulblets or offsets, the fleshy scales, the primary storage tissue, and the basal plate.
Tunicate bulbs and imbricate bulbs are the two types of true bulbs. The scales on a tunicate bulb are shielded by a tunic, which resembles paper and shields them from mechanical harm.
An example of tunicate bulbs.
Tulips, daffodils, hyacinths, grape hyacinths, and alliums are exemplary tunicate bulbs.
Numerous plants, like daffodils, create new bulbs all around the parent bulb. These bulbs, known as offsets, grow from buds inside the mother bulb's base and produce additional plants.
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What part of the respiratory passageway primarily functions to warm, humidify, and filter inhaled air?.
Answers
please help i’ll give brainliest
Answers
Answer:
the largest amount of organisms are the producers, so yeah choose producers
A man has blood type AB and a woman has blood type A. Can this couple have a child with A blood and why?
Answers
Answer:
yeah the child can have any type of blood A, B or O it doesn't matter... because the types of blood doesn't depend on genetic traits.... it depends on the type of antigens and antibodies present in them...
Explanation:
brainliest plz
Define the term, "stratigraphy".
1. identifying landforms
2. graph keeping the record of small microbes
3. measures earthquake vibrations
4. process of describing the patterns in which rock layers are deposited
Answers
The correct answer is 4. process of describing the patterns in which rock layers are deposited.
A subfield of geology called stratigraphy studies rock layers (strata) and layering (stratification). It is mostly applied to the study of layered volcanic rocks and sedimentary rocks.The scientific field of stratigraphy is concerned with describing geological successions and interpreting them in terms of a broad time scale. In addition to serving as the foundation for historical geology, petroleum geology and archaeology have both found use for its principles and methodologies.Sedimentary rocks are the focus of stratigraphic research, but they may also cover layered igneous rocks (such as those produced by successive lava flows) or metamorphic rocks that were created from either such extrusive igneous material or sedimentary rocks.The separation of a series of rock layers into mappable units is a common objective of stratigraphic investigations.Therefore, option 4. is correct.
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Crop rotation is a planned order of specific crops planted on the same field. Crop rotation means that succeeding crops are of adifferent genus and species. Examples are row crops planted after small grains or grain crops after legumes. The planned rotationmay be for a two- or three-year period.What is a LIKELY ecological impact of crop rotation?A) The main crop becomes resistant to pests.B) It can interrupt the life cycles of certain pests.C) Lesser amounts of nitrogen are needed in the soilD) It ensures the presence of a single type of nutrient in the soilPlease select the correct answer choice.
Answers
A likely ecological impact of crop rotation is that it ensures the presence of a single type of nutrient in the soil. (option D)
between neanderthals and denisovans which of them has contributed the advantageous alleles to the human gene pool that affect the skin and immune traits?
Answers
The following characteristics distinguish modern humans from other Homo sapiens species, Neanderthals, and both of them:-
Characteristics of early human
Humans have thin, flexible fingers, light bones, and quick mobility. They also have a long childhood.
Neanderthals had big fingers, heavy bones, and slow movements.
Both: Made use of tools; stood straight.
Describe traits.
The quality that a person possesses and is referred to as his personality is referred to as a trait. The property of being consistent, steady, and differentiable from person to person is included in the feature.
There are three different categories of qualities: cardinal, central, and secondary traits.
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How many turns of the double helix must be unwound during replication of the e. coli chromosome?
Answers
It is given in the question that the E. coli chromosome contains 4,639,221 base pairs.
As we know that the one turn of double-stranded chromosome contains ten base pairs.
Therefore, if we need to find the number of turns for 4,639,221 base pairs, then we need to divide it by ten.
Hence, the number of turns of the double helix that is required for unwinding during replication of E. coli is 463922.
What is E. coli ?E. coli or Escherichia coli is a type of bacteria that is known to reside in our intestines. E. coli belongs to the family of Enterobacteriaceae. When this bacteria is found in urine, then it can cause some dangerous urine infections, ultimately infecting urinary tract infections.
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