Answer:
B
Explanation:
Adaptation can be described as a process that helps the organisms fit their environment and enhancing their evolutionary fitness (reproductive success). Adaptation makes organism become well-suited for an environment and thus, help them to survive and produce more offspring. Also, adaptation may refer to a phenotypic or adaptive trait with a functional role in the success of each organism in their habitat.
They increase the genetic diversity of the species
The answer is A: salt content
It’s negative because the small fish provide food for the bigger fish
C
Explanation:
I think it's c if not then d
Im pretty sure the answer is B
