Answer:
Cnidaria
→ Organisms have specialized stinging cells
→ Two type of body plans exist - polyp and medusa
Porifera
→ Organisms lack symmetry
→ Adult forms are sessile
→ Organisms obtain food by filtering water
→ Phenomenon of alternation of generation is observed.
Explanation:
Cnidaria, also known as the coelenterata, is a phylum of mostly marine animals having about 9,000 living species. Some of them include the corals, hydras, jellyfish, sea anemones, sea whips, etc. They possess specialized cells known as cnidocytes ( also known as “stinging cells”). These cells can seen around the mouth and tentacles cnidarian. They immobilize their prey with toxins. These Cnidaria have two body plans and which are polyp and medusa.
The phylum Porifera are known as the pore bearers. It has about 5000 species. Their adult forms are sessile. They live permanently attached to rocks. They can under alternation of generation. They possess no organs in their bodies. Also, they lack symmetry. They can be referred t as filter feeders because they obtain food by filtering water.
A pea plant with round seeds (Rr) is crossbred with another pea plant with wrinkled seends (rr). What is the probability of offspring having a wrinkled seed? (4 points) a 0% b 25% c 50% d 75%
HURRY TIME LIMIT!!!!
Answer:
50%
Explanation:
Answer:
C: 50%
Explanation:
You get Rr, Rr, rr, and rr. 50% out of 100%
1) What is population?
2) Two things that increase a population
3) Two things that decrease a population
4) Humans and dogs live together, are they part of the same population? Why or why not?
Answer:
1. the number of people who live in a place.
if the codon for phe is 5'- u u c 3' what is the anticodon that would be found on the trna that carries phe?
if the codon for phe is 5'- u u c 3' , AAG is the anticodon that would be found on the trna that carries phe. Their function is to base pair with the codon on a strand of mRNA during translation.
An amino acid's specific genetic information is encoded by a codon, which is a DNA or RNA sequence made up of three nucleotides (also known as a trinucleotide). A trinucleotide sequence called an anticodon is found at one end of a transfer RNA (tRNA) molecule and is complementary to a corresponding codon in an mRNA sequence. During protein synthesis, each time an amino acid is added to a developing polypeptide, a tRNA anticodon couples with the corresponding codon on the mRNA molecule to ensure that the correct amino acid is incorporated into the polypeptide.
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Why is West Ferris not running out of water?
Answer:Pq ele é bom no que faz e está sempre a paum sso a frente da humanindade
Explanation:
which of the following is not a component of the ear? select one: a. pinna b. cochlea c. semicircular canal d. all of the above are part of the ear.
The correct answer is: d. all of the above are part of the ear.
All of the given options (a. pinna, b. cochlea, c. semicircular canal) are indeed components of the ear.
The pinna, also known as the auricle, is the visible part of the ear that resides outside the head. It serves to collect and direct sound waves into the ear canal.
The cochlea is a spiral-shaped, fluid-filled structure within the inner ear. It plays a crucial role in the conversion of sound vibrations into electrical signals that can be interpreted by the brain.
The semicircular canals are three fluid-filled tubes in the inner ear that are responsible for detecting head movements and helping to maintain balance.
Therefore, all of the listed options are integral components of the ear, and none of them are excluded from the ear's anatomy.
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Describe how the picture below represents the function of the immune system
Answer:
The Human Immune system helps fight bacteria and germs and viruses because without the Immune system we could die it is what protects us from The flu and sometimes cov id with a weak immune system we might no survive.
Explanation:
Question 4
Which organism would probably survive in a hot tub?
a. E coli
b. Vibrio cholera
c. Entamoeba histolytica
d. Pseudomonas aeruginosa
Pseudomonas aeruginosa organism would probably survive in a hot tub. So the correct option is D.
The organism most likely to survive in a hot tub is Pseudomonas aeruginosa. This is because Pseudomonas aeruginosa is a common waterborne bacterium that can survive in a wide range of environments, including warm water. It is also resistant to many disinfectants, making it difficult to eliminate from water sources.
On the other hand, E. coli is a bacterium that is commonly found in the intestines of warm-blooded animals and humans and may indicate fecal contamination in water. Vibrio cholera and Entamoeba histolytica are both waterborne pathogens that can cause severe gastrointestinal illness in humans and are unlikely to survive in hot tub temperatures.
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if you had a 10% salt solution on one side of a beaker and a 5% solution on the other side and they were sperated by a semipermeable membrane which way would the water move? why?
If you had a 10% salt solution on one side of a beaker and a 5% solution on the other side separated by a semipermeable membrane, the water would move from the 5% solution side to the 10% solution side.
This is because water will always move from an area of low concentration (5%) to an area of high concentration (10%) in an attempt to equalize the concentration levels on both sides of the membrane.
Since the membrane is semipermeable, it allows the passage of water molecules but not salt ions, so the water will move to dilute the higher concentration of salt on the 10% solution side.
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Help! my nose bleed for more than 30 min and i feel abit dizzy what shoud i do, i am a little kid and my parents are sleeping because it is 6 am what should i do
In the real world, population explosion is usually followed by Select one: a. A continuation of high population levels indefinitely b. A population crash c. A gradual increase in population due to the availability of mates d. A tremendous increase in genetic diversity e. A gradual decrease in population as food supplies dwindle
From what we know, we can confirm that In the real world, a population explosion is usually followed by a population crash.
What is a population crash?A population crash is when the population of a region ceases to increase and declines suddenly. This is quite normal as the higher population now competes for fewer resources as well as mates in between the members of the population.
Therefore, due to finite resources and mating availability, we can confirm that In the real world, a population explosion is usually followed by a population crash.
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What does a baseball player do in a game if he hits for the cycle?
When a baseball player hits for a cycle, he hits one of each type of possible hit within the same game. He may hit a single, double, triple, or home run.
When a player hits all four titles in the same game, they have to hit a single, a double, a triple, and also a home run in the same game. Order is not a matter, and they can complete this in any order.
There are many types of the cycle. These are the natural, reverse, and homerun cycles. One needs to accomplish in order to gain these titles. or they may need certain hits all in one game.
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voltage-gated channels are characteristically found in the plasma membrane of which of the following group of answer choices
A. motor-endplate of the myofibers
B. dendrite
C. neuronal cell body
D. transverse tubule
Voltage-gated channels are characteristically found in the plasma membrane of the transverse tubule. The answer is D.
Transverse tubules are invaginations of the plasma membrane that run perpendicular to the myofibrils. They are important for the propagation of action potentials from the surface of the muscle fiber to the interior of the cell.
Voltage-gated channels are proteins that open and close in response to changes in the membrane potential. When they are open, they allow ions to flow through the membrane, which can change the membrane potential.
This change in membrane potential can then trigger the opening of other voltage-gated channels, and so on. This process is called action potential propagation.
Action potential propagation is essential for muscle contraction. When an action potential reaches the transverse tubule, it triggers the release of calcium ions from the sarcoplasmic reticulum.
Calcium ions bind to troponin, which causes tropomyosin to move out of the way, exposing the myosin-binding sites on actin. Myosin heads can then bind to actin and use ATP to power the sliding of the filaments past each other, which causes muscle contraction.
Therefore, voltage-gated channels are essential for muscle contraction. They are found in the plasma membrane of the transverse tubule, and they are responsible for the propagation of action potentials from the surface of the muscle fiber to the interior of the cell.
Therefore, the correct option is D, transverse tubule.
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Which biome is overall least altered by human activity world-wide? A. Tropical seasonal forest. B. Tundra C. Tropical rainforests. D. Deserts.
The biome that is overall least altered by human activity worldwide is b) Tundra.
What is Biome?
Biomes are major ecological areas that are based on the general temperature and climate of the area, including the physical aspects such as the topography of the landscape, the water and soil present, and the type of vegetation. Biomes range from tropical rainforests to arctic tundra, and each biome has a unique set of environmental factors that contribute to the flora and fauna found within that region.
Why Tundra is least altered by human activity world-wide?
Tundra is the one that has been least altered by human activity worldwide because of the following reasons:
Tundra is an ecosystem that is characterized by extremely low temperatures, low precipitation, and short growing seasons. The soil is typically frozen year-round, which makes it difficult for plants to take root, and the harsh climate limits the number of animals that can survive in this environment. Human activity in tundra biome is limited, due to the above-mentioned factors and these regions are typically isolated from human settlements or infrastructure.As a result, tundra biomes are some of the least impacted by human activity worldwide.
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What kingdoms contain bacteria?
Which ones out of this??
Answer:
Both Eubacteria and Archaebacteria. There are two kingdoms of prokaryotes.
Explanation:
Which would a scientist most likely do before asking a question that could lead to a scientific experiment?
Before asking a question that could lead to a scientific experiment, a scientist would most likely conduct background research and review existing knowledge on the topic.
Scientific research is built upon a foundation of existing knowledge and understanding. Before formulating a question that can be tested through an experiment, scientists typically conduct thorough background research to familiarize themselves with previous studies, theories, and observations related to their topic of interest.
This helps them gain a comprehensive understanding of the subject matter, identify gaps in knowledge, and formulate meaningful questions that can be investigated through scientific experiments. By conducting this preliminary research, scientists ensure that their questions are informed, and relevant, and contribute to the advancement of scientific knowledge in their field.
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Was the Virginia Tech soil enhancement research project a success?
im dying on this queston help pls
What are the two sources of law in Australia?Options are:Federal and statutoryStatutory and commonCivil and commonHigh court and civil
The correct option is A. Federal and statutory. this is based on the British legal system.
Quartz particles of varying sizes are dropped at the same time into deep, calm water. which crow section best represents the settling pattern of these particles?
The settling pattern of quartz particles of varying sizes that are dropped at the same time into deep, calm water can be represented by the d. crow section. This section of the sedimentary column represents sorted sediments that are deposited based on their grain size.
When quartz particles of varying sizes are dropped into water, they will settle at different rates due to their differences in size. The larger particles will settle faster and the smaller particles will settle slower. Over time, the larger particles will form a layer at the bottom of the water, followed by a layer of slightly smaller particles, and so on. This is known as sorting.The crow section represents the result of this sorting process. It shows the different layers of sediment that have been deposited based on their grain size, with the largest grains at the bottom and the smallest grains at the top. The crow section is commonly used in sedimentary geology to help interpret the depositional environment of a rock sequence.
In summary, the settling pattern of quartz particles of varying sizes that are dropped at the same time into deep, calm water can be represented by the d. crow section, which shows sorted sediments deposited based on their grain size.
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Put the steps of Cellular Respiration in order.
1. Two molecules of pyruvate move into the mitochondria where they are converted into Acetyl CoA. More NADH is produced and CO2 is released.
2. Glycolysis takes place in the cytoplasm and breaks down glucose to form two molecules of pyruvate. 2 ATP are produced and NADH is saved for later.
3. In the Citric Acid/Kreb's Cycle the carbons that are left from the initial glucose are oxidized releasing more CO2. NADH and FADH2 and 2 ATP molecules are produced.
4. Energy is used to produce about 34 ATP. Oxygen is the terminal electron acceptor that combines with oxygen to produce water.
5. In the electron transport chain, the NADH and FADH2 give up electrons, energy is released and captured as it moves from a high concentration to
low concentration.
Steps in Cellular Respiration are as follows 2-1-3-5-4
Cellular respiratory is the process by way of which organic fuels are oxidized within the presence of an inorganic electron acceptor inclusive of oxygen to supply huge amounts of electricity, to drive the majority production of ATP.
It's far a chemical system wherein oxygen is used to make electricity from carbohydrates and sugars. also referred to as aerobic metabolism, aerobic respiration, and unicellular respiration works either inside the presence or absence of oxygen. however, basically, the method is called cell respiration because the cellular appears to “respire” in a manner that it takes in molecular oxygen and releases carbon dioxide as a cease product.
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What will pair with adenine?
In DNA base pairing, adenine always pairs with thymine, and guanine always pairs with cytosine. Adenine is also one of the bases in RNA. There it always pairs with uracil (U). The base pairs in RNA are therefore A-U and G-C.
Please help me on this is so confusing
A: December
B: march
C: June
D:September
Answer:
i think its december because the left side is shadowed because of the sun.
Hope it helps!
Oil is a fossil fuel that provides power to sustain a modern lifestyle. Which of these statements best describes a cost of oil drilling? oxygen gas is absorbed. Oceans and rivers dry up. Radiation may cause health problems. Water and soil may be contaminated.
The statement that best encapsulates the cost of oil drilling is "water and soil may be contaminated."
How is fossil fuel utilized?Petroleum-based products are used in the production of electricity, building heating, and vehicle propulsion. Plastics, polyurethane, solvents, and countless other intermediate and finished goods are produced by the petrochemical industry in the industrial sector using petroleum as a raw material (a feedstock).
Because they are mixtures of hydrocarbons that formed from the remains of plants and animals (diatoms) that lived in a marine environment millions of years ago, before dinosaurs existed, we refer to crude oil and petroleum as fossil fuels.
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consider the blood typing results illustrated here. the solid coloring indicates that no agglutination occurred during the test. the blotchy coloring indicates agglutination occurred. what is the blood type of this individual?
Based on the blood typing results illustrated, we can determine the blood type of this individual by observing the presence or absence of agglutination. Agglutination refers to the clumping together of red blood cells in response to specific antibodies. To determine the blood type, we need to consider two main factors the presence or absence of A and B antigens on the red blood cells, and the presence or absence of anti-A and anti-B antibodies in the plasma. In the given results, the solid coloring indicates no agglutination, which means there was no reaction between the red blood cells and the corresponding antibodies.
The blotchy coloring, on the other hand, indicates agglutination, suggesting a reaction occurred. Let's analyze the given results to determine the blood type:
- If the red blood cells show agglutination with the anti-A antibody and no agglutination with the anti-B antibody, the blood type is A. - If the red blood cells show agglutination with the anti-B antibody and no agglutination with the anti-A antibody, the blood type is B. - If the red blood cells show agglutination with both anti-A and anti-B antibodies, the blood type is AB. - If there is no agglutination with both anti-A and anti-B antibodies, the blood type is O. Based on the given results, we can see that there is agglutination with the anti-A antibody and no agglutination with the anti-B antibody. Therefore, the blood type of this individual is A.About Blood typingBlood typing is the science of classifying blood from a group based on the presence or absence of inherited antigenic substances on the surface of the red blood cell membrane. This is due to differences in the types of carbohydrates and proteins on the surface of the red blood cell membrane. Some say that blood type O is the universal donor blood group and AB is the universal recipient blood type. That is, blood type O is considered to be donated to all types of blood groups in the ABO classification system (A, B, O, and AB). A, B, AB, and O are the most commonly known blood groups. Among the four blood types, those with blood type O are said to be the least likely to get sick. Although they rarely get sick, people with blood type O can get sick quickly.
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A small oceanic plate borders the North American Plate along northern California, Oregon, and Washington. As a result of
this plate boundary, the Pacific Northwest contains a volcanic mountain range known as the Cascades.
Based on the volcanic mountain range shown on the map, describe the motion of the plates and identify the type of plate
boundary in this region.
The motion of the plates is towards each other and the type of plate boundary in this region is referred to as convergent boundary.
What is Convergent boundary?This is referred to as a location or area where two tectonic plates move towards each other and it is based on different types of factors and the materials which are involved in the process.
This type of boundary is common along northern California, Oregon, and Washington and it contains a volcanic mountain range known as the cascades which depicts the collision of the plates which is therefore the reason why it was chosen as the correct choice.
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HELP PLEASE! BRAINLIEST AND 10 points
7. The Endangered Species Act protects biodiversity by——-
a.making a list of protected animals
b.preserving habitat
c.all of these
d.prohibiting the sale of endangered species
Answer: Hold on i need to change my answer rq.
Explanation:
The Endangered Species Act is the strongest law for protecting biodiversity passed by any nation. Its purpose is to prevent the extinction of our most at-risk plants and animals, increase their numbers and effect their full recovery — and eventually their removal from the endangered list.
A scientist is researching Cystic Fibrosis. He is
studying what type of disease?
A. Somatic disease
B. Chromosomal disease
C. Single-Gene disease
D. Multifactorial disease
he is studying Somatic disease.
Penguins adapt to bear the cold. Their body structure helps them to keep warm.
What is the behavior seen in penguins?
Answer:
Penguins are known for their unique and often endearing behaviors, which have captured the fascination of people around the world. Some of the most commonly observed behaviors in penguins include:
Huddling: Penguins often huddle together in large groups to conserve warmth and protect themselves from the harsh Antarctic winds.
Tobogganing: Some penguin species, such as the emperor penguin, use their bellies to slide across the ice, a behavior known as tobogganing. This is an efficient way for them to travel across the ice without expending too much energy.
Nest building: Many penguin species build nests out of rocks or pebbles to protect their eggs and chicks from the cold ground and wind.
Marching: Some penguin species, such as the king penguin, are known for their distinctive waddling gait, which is sometimes referred to as "marching."
Vocalizing: Penguins have a wide range of vocalizations that they use to communicate with each other. These can include calls, trumpeting, and braying.
Swimming and diving: Penguins are excellent swimmers and divers, and can hold their breath for several minutes at a time while hunting for fish and other prey.
These behaviors are adapted to the unique environment of Antarctica and the Southern Ocean, where penguins live. They allow penguins to survive and thrive in this challenging environment, and have also endeared these remarkable birds to people around the world
Explanation:
gregor mendel’s experiments overturned the idea of blending inheritance.
Gregor Mendel’s experiments overturned the idea of blending inheritance. This statement is true.
Mendel conducted his experiments on pea plants, where he observed the transmission of different traits from one generation to the next. He chose pea plants because they had easily visible traits and were able to self-fertilize. Mendel discovered that each individual pea plant has two copies of each gene - one from each parent.
These two copies are called alleles, and they can be either dominant or recessive. When the dominant allele is present, it will determine the physical characteristics of the plant. However, when the recessive allele is present, it will not be expressed in the physical appearance of the plant. Mendel was able to cross-breed pea plants with different characteristics to produce a new generation of plants with specific traits.
He discovered that the traits were inherited independently of each other. This means that each trait is inherited independently and is not blended with other traits from the parents. This was a significant finding because it challenged the prevailing theory of blending inheritance.
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8. Which of the following statements is true about meiosis?
A. Meiosis produces 2 genetically identical daughter cells
B. Meiosis produces 4 identical daughter cells
C. Meiosis produces 4 genetically different daughter cells
D. Meiosis produces 2 different daughter cells
Answer:
B
Explanation:
Meiosis produces gametes that contain one complete haploid set of chromosomes
Meiosis is a reduction division, where the number of chromosomes in the daughter cells is reduced to half as compared to the parent cell. This set of chromosomes is called a haploid set or genome. The reduction from diploid to haploid occurs during Anaphase I of meiosis I, where homologous chromosomes separate and enter into two different cells. Meiosis takes place only in reproductive cells that divide to form gametes
So, the correct answer is 'Meiosis produces gametes that contain one complete haploid set of chromosomes'
hope that helps
which type of cell has a life span of four days?(1 point) responses colon colon skin skin brain brain heart
Answer: skin cellls
Explanation:
. skin cells
2. Heart cells express different genes than skin cells
3. an organism's cells multiply many times adding mass to the organism
4. Stem cells differentiate to provide specialized cells that replace damaged tissue.
5. telomere
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