If a population is evolving, the allele frequency will change.
Answer: Change
For Gradualism, changes in species is slow and gradual, occurring in small periodic changes in the gene pool, whereas for Punctuated Equilibrium, evolution occurs in spurts of relatively rapid change with long periods of non-change
THe maggots is the correct answer
b
I am not that sure but I think endocrine cell don't contain blood vessels
