Answer: I too feel like that on a daily basis
Explanation:
I don't really know but I pick b.have always been vestigial.
Chromosomal deletion is the loss of genetic code, caused by a segment of chromosome breaking away during DNA replication. The best answer is the third one, "when part of a chromosome breaks off and does not reattach."
Inner planets are all of the planets inside the asteroid belt, so that would be Mercury, Earth, Venus, and Mars.
Go off kacey, as she should.