Organisms with 23 different chromosome pairs can produce gametes with 8 million possible chromosome combinations, an incredible amount of genetic variation. This
many chromosome combinations in the gametes is possible because of which of the
following?
O thousands of different types of DNA base pairs.
O random separation of chromosomes during meiosis.
O mutations that lead to more chromosomes in the gametes.
O crossing-over that occurs during mitosis.

c. is the correct answer

bal is blood alcohol level. bac will normally be higher in a person with more body fat. so the answer to your question would be, as body fat decreases, the increasing rate of bal decreases.  

the statements that apply here about binary star system are

"have stars that might appear to wobble"

"often have one star that is brighter than other"

a binary star is a star system consisting of two stars revolving around their common barycenter. systems of two or more stars are called multiple star systems.