Genetic distances within a given linkage group
a. cannot exceed 100 cM.
b. are dependent on crossover frequencies between paired, non-sister chromatids.
c. are measured in centiMorgans.
d. cannot be determined.
e. Both b and c are correct

the answer is a) a shiprock was formed by igneous process

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."

the answer is lactic acid from anaerobic respiration. the acid in lactic acid is what creates sore and burning muscles. if you think about how acid burns that will give you a clue for questions like this.