Explain how available, affordable energy is important to a countries standard of living.

it restores trees to areas where they once grew.

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.

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.

cells spend most of their time in interphase