I'm not sure how exactly you wanted this question to be answered. You're either talking about the symmetry where animals would have two legs or two arms for example and thus producing a pair of each muscle on both sides of the body, or you're refering to the development of agonistic and antaonistic muscles where each of them served a different purpose; either extending or contracting.
Answer: False
Explanation: This is FALSE because the bats make a high frequency sound and we can't hear that type of sound.
Answer:
wouldn't it he A
Explanation:
because they are not the same species
