What evidence have you discovered that explains how embryology helps with understanding the evolutionary history of bats and birds?

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

the dna of humans and mice is almost 92% similar. this similarity indicates that . mice have a tail, while humans have a tailbone. the tailbone is a structure in humans.yes it's true.

a lot of people sadly don't know the best way to learn is cheating off of your friends or this amazing thing called google

i think its both a and b