Answer:
The answer is letter B
Explanation:
A cell contains thousands of different kinds of enzymes, each promoting a different chemical reaction.
Calcium ion is responsible for Muscle Contractions.
This question is pretty vague and confusing.
Answer:
2nd trimester
Explanation
Brain start to be developed in this stage and so a lot of nutrients supplied to them and hence rapid cell division occur which led to rapid growth
Answer:
Gulls, since they are the only predators shown for the green crabs.
