At the DNA synthesis (G2) checkpoint, DNA replication is checked by Group of answer choices electron transport chains. repair enzymes. cell surface markers. receptor proteins. Flag this Question

Find and describe the climate zone in which you live,where else in the world do you find this climate zone? do you have any ideas about why the climates might be similar?

19. scientists use meteorites that hit earth to provide evidence of the composition of earth's interior because they hypothesize that

Match the examples to the correct level of organization. 1. system level roses, snakes, puppies 2. organism level roots, stamens, leaves 3. tissue level bone, cartilage, blood 4. organ level heart, veins, arteries