38) I believe the correct answer would be letter D: ions are moved against the concentration gradient.
39) I believe the correct answer is letter A: the DNA information for development was silenced in differentiated cells. This is because the frog did not go through <span>embryonic development.</span>
<span>a. genetics and biology playing a dominant role.
Scientists and mental health professionals have argued that sexual orientation, which gives rise to homosexuality, is not a choice but a result of biology, inborn hormonal factors and genetics</span>
Answer:
Populations evolve, not individuals. ... Individual organisms do not evolve, they retain the same genes throughout their life. When a population is evolving, the ratio of different genetic types is changing -- each individual organism within a population does not change.
