Two brown-eyed parents produce a green-eyed child. How is this possible? A...All parents have all gene combinations which are randomly selected at conception.
B...The parents have a hidden recessive gene for eye color.

C...The gene for green eyes is the dominant gene, so it will always present itself if present.

D...This is only possible with very rare genetic mutations.

It could be B. The parent have a hidden recessive gene for eye color.

Explanation:

hi~~

i would say that hybridization occurs frequently in nature, because there are many types of hybrids that have occurred naturally, such as the mule (male donkey + female horse)

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.