The Carrie’s blood from the heart to all the other parts of the body and back again. HELP FAST

Which of the following are false concerning microbes? a. microbes generate oxygen through photosynthesis.b. the primary role of microbes on the planet involves causing disease in animals and humans.c. microbes produce vitamins in the intestines.d. microbes play a role in breaking down waste and decomposing dead organisms.

Which codon is the code for the amino acid histidine (his)?

Which of the following is not a possible effectof increasimg carbon dioxide levels in the atmosphere ?