True-breeding pea plants have either spherical seeds or dented seeds with spherical being the dominant phenotype. A genetic cross between two F1-hybrid pea plants for spherical seeds will yield what percent of plants with a heterozygous genotype in the F2 generation?

A. 0%
B. 25%
C. 50%
D. 75%

Which of the following may one conclude from a map that shows the average ph value of rainfall in the u. s.? acid rain is a more serious problem on the east coast. acid rain falls equivalently across the continental u. s. there are more factories on the west coast. the midwest has fewer forests than the rest of the u. s.