Answer: D. They must eat in order to gain nutrition
Explanation:
It's high sensitivity I believe
Answer:
A
Explanation:
Since the water occupies a bigger space the organisms that reproduce in freshwater have a bigger area to reproduce.
I would go with 4 that's what makes the most sense to me, and i just learned about this last year so... I hope this helps good luck..
Answer:
Multi-step process
Because it can be done twice or more