You do know that you have to give a topic on what this project is about, also doing this quick is never gonna happen. Science projects take TIME AND EFFORT. So, with that being said, sorry for wasting your time.
You can differentiate them as vertebrates.
Bats are mammals
Doves are birds
The circulatory system and respiratory system are protected by your skin, muscles, and ribs.
A. they have a higher proportion of adenine–thymine than guanine–cytosine base pairs.
The option A represents the complete opposite of "high-gc gram-positive bacteria". High GC content means that this bacteria have more guanine ans more cytosine than the other base pairs- adenine–thymine. This means all the other options are correct.
Cow's milk
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