The purpose of transfer RNA (tRNA) is to bring the amino acids to the ribosome. The ribosome is where proteins are constructed.
The answer to the question is 4) change occurs according to the needs of an individual.
Sexual reproduction produces offspring by the fusion of gametes, resulting in offspring genetically different from the parent(s). Asexual reproduction produces new individuals without the fusion of gametes, genetically indentical to the parent plants and each other, when mutations occur
<span>In horses, the most distal bone in their hindlimb, which is the cannon bone is homologous to the metatarsal bones in humans.</span>
B, as far as we know humans aren't from space