Which describes a similarity between abiotic and biotic factors? they may include things that were once living. they are both necessary for organisms to survive. they are not usually important parts of the environment. they can be easily replaced if they are used or destroyed.?

B

Explanation:

B. They are both necessary for organisms to survive.

Explanation:

I took it in Ed and got it right.

each of the 46 original chromosomes splits into two daughter chromosomes, so there are two sets of 46 daughter chromosomes that end up in each cell. human cells have 46 chromosomes. each chromosome consists of a pair of identical chromatids attached together by a structure called a centromere.