Afather is now three times as old as his son. twelve years ago he was six times as old as his son. how old are the son and father now

Which of the following statements about pesticides and residue is false? a. most conventionally grown produce has detectable levels of pesticides when purchased from the store.b. the us government has determined that small levels of pesticides in produce is safe for humanconsumption.c. organic produce always will be pesticide-free.d. farm workers, children, and pregnant women are at greatest health risk from pesticides. select the best answer from the choices provided.

During which era in earth's history were the first insects? mesozoic precambrian cenozoic paleozoic

How many structures do prokaryotic cells have in common with the eukaryotic cells? a. 2b. 3c. 4d. 5