In active transport there is a that is reached at very high extracellular concentrations of solute. *

a. minimum transport rate
b. maximum transport rate
c. minimum transport volume
d. maximum transport volume

Color blindness is a recessive trait. the gene for color blindness is on the x chromosome. the family tree below shows the trait of color blindness. the only unknown is the mother in the first generation

Astudent analyzed ears of corn that demonstrated two traits in the f2 kernels, purple or white colors and smooth on wrinkled shapes. a tabulation of 135 individual kernels gave the following results: purple and smooth = 75 white and smooth = 28 purple and wrinkled = 24 white and wrinkled = 8 what would be the only phenotype present in the f1 ger

What are 3 reasons that natural selection occurs