Answer:
Serotonin
Explanation:
Please mark me brainliest
Answer:
Plants.
Explanation:
Producers is an organism in an ecosystem that can make its own food. Plants use a process called "Photosynthesis" in order to make the food it needs to survive. Other organisms have to eat a different organism in order to survive,
Thus, the answer is (A)
The set of all alleles at all loci is the full gene pool<span> for the species. Over time, the size of a </span>gene pool<span> changes. The </span>gene pool<span> increases when a </span>mutation<span> changes a </span>gene<span>and the </span>mutation<span> survives </span>