Answer:
The tRNA anticodons pair with the complementary mRNA codons at the ribosomes. The individual tRNA molecule carries an amino acid according to its specific code. When tRNA releases its amino acid, peptide bonds form between the amino acids. After each tRNA releases its amino acid, it is free to pick up another amino acid in the cytoplasm.
Explanation:
Answer:
Which of the following groups of animals has suffered the largest percentage of known extinctions in the last 400 years? Mammals
Explanation:
Changes to habitats and poor reproductive trends are among the factors that can make a species’ death rate higher than its birth rate for long enough have eventually lead to the extinction of mammals in the world.
Secondary consumers include the baleen whale and the much smaller herring. The baleen whale is a large mammal with few predators that filter materials from the ocean through their mouths, this material includes algae and plankton. Herring is a smaller fish that also consumes algae to provide food for survival.
Process that is not properly matched with its description is: external respiration: CO2 diffuses into the blood stream
Respiration is the process by which O2 and CO2 diffuse into the blood and get out of the blood (gas exchange occurs). There are two types of respiration:
1. External respiration - gas exchange between the external environment and the lungs. This is what we call breathing. So the example above is not external respiration.
2. Internal respiration - gas exchange between the cells of the body and the blood
The answer is D, polypeptide synthesis.
Translation means translating the code in RNA to actual protein chains. In other words, this is the process of synthesizing peptide chains (aka polypeptides).
Think of it as "translating" the genetic message into actual materials used in the body.
