4. Which statements are useful for explaining the ratio of black-coated to brown-coated mice in the F2 generation?
Select all that apply.
a. The F, male produced two kinds of sperm, half carrying
an allele for black coat color, and half carrying an allele for
brown coat color.
b. The F, female produced two kinds of eggs, half carrying
an allele for black coat color, and half carrying an allele for
brown coat color.
c. An approximately three-to-one ratio of black to brown
coated mice in the F2 generation is accounted for by the
black allele being dominant over the brown allele.
d. The brown allele segregates together with the black
allele and disappears in the F, generation.

Select the correct answer. which term do biologists use to describe the average number of individuals of a species per unit area? a. carrying capacity b. population density c. minimal viable population d. survivability curve

Hurry i need your (100 points) 1) what are the responsibilities of the region of the brain highlighted below? (picture located below) the highlighted portion is at the rear base of the brain, behind the brain stem. regulating homeostasis, hunger and eating, thirst and drinking, and many other functions of basic survival. coordinating movement and balance by using information from sensory nerves, including hand-eye coordination. controlling voluntary body movements, processing information from sense organs, thoughts, and learning abilities. regulating important involuntary bodily functions such as blood pressure, heart rate, breathing, and swallowing. 2)which of the following systems or structures is correctly paired with its function? neurons - brain cells that control thoughts, calculations, and memory cerebral cortex - portion of the brain that controls involuntary body movement peripheral nervous system - carries impulses to and from the central nervous system central nervous system - carries information from the nerves to the muscles and glands

What happens when two nitrogen atoms share electrons