Color blindness is an x-linked recessive trait. under what conditions can an unaffected male have a color-blind daughter? his mate is color-blind. he can't. he is heterozygous for color vision. his father is color-blind. his mother is color-blind.

Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius 3*10^2 of centimeters. what is the volume of air in the spherical ball? use this formula: volume of a sphere=4/3pi,r^3 , where r is the sphere’s radius.

What is an endocrine function? (apex) a.esophageal glands release mucus into the esophagus b.salivary glands release saliva into mouth c.swear glands release sweat to the skin d.the pineal gland releases melatonin into the bloodstream

Which of the following explains why a tree is often used as a model to represent the principle of common descent