What are two ways a pollen grain can get to the stigma of a pistil

Select the true statements about eubacteria. most live as decomposers and heterotrophs. most only thrive in a narrow range of environments. certain eubacteria are responsible for food poisoning. eubacteria thrive in extreme environments.

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above

Which of the following is required of a new drug?me