Passive transport DOES NOT need energy(ATP), while active transport does.
It seems that you have missed the given options for this question, but anyway here is the correct answer. The name of the process in which genes are identified by transforming mutant cells and screening for restoration of wild-type function is called CLONING BY COMPLEMENTATION. Hope this answer helps. Thanks for posting.
Answer:
the body of arboreal animals is flexible that enables them to pass through narrow branches.
B. Echinoderms hoped this helped
