I think it is the second answer, sorry if it is wrong/didn’t help.
simple mules are a mix of hourse and donky and are born infertle they cant BREED.
Your going to need show us the experiment, sense all of those are functions there is no question or details for us to answer your question
Answer:A bat has a much more flexible wing structure. It is very much like a human arm and hand, except it has a thin membrane of skin (called the patagium) extending between the "hand" and the body, and between each finger bone. Bats can move the wing like a hand, essentially "swimming" through the air.
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