The answer is C.Petroleum I hope this helped ^^
Mutations can occur in sex cells<span> or in </span>body cells<span>. In which cell type might a mutation be passed from generation to generation? Mutations that occur in the </span>sex cells<span> (eggs and </span>sperm) will be passed from generation to generation because thesex cells<span> are what form the DNA of the next generation</span>
Answer to question four is B
Mercury is classified as a neurotoxin.
Neurotoxin are extensive class of exogenous chemical neurological insults that can adversely affect function on both developing and mature nervous tissue.in other words neurotoxins are toxins that are poisonous or destructive to nerve tissue. the nerve impulse is blocked and symptom include low heart rate and muscle paralyses
Because every cell have some life span after this they become older and damage, so cells divide to replace old and damage cells.
