"Mechanical" would be the kind of reproductive isolation among the choices given in the question that has been observed in these two species. The correct option among all the options that are given in the question is the first option or option "A". I hope that the answer has come to your help.
Answer:
The answer is D. Kidneys absorb more water,volume of water lost from the skin increases and the hairs on the skin lie flat
The answer is Energy cannot be created nor destroyed.
B is the answer to your question
