Which of the following is a polyatomic ion? o a. hci o b. na o c. po, o d. 52

Aballoon inflated with three breaths of air has a volume of 1.7 l. at the same temperature and pressure, what is the volume of the balloon if five more same-sized breaths are added to the balloon?

Which describes interactions between substances and stomata during photosynthesis? check all that apply. oxygen enters stomata. oxygen is released through stomata. carbon dioxide enters stomata. carbon dioxide is released through stomata. hydrogen enters stomata. hydrogen is released through stomata.

Look at the bean data from days 4–6. use these data to explain how natural selection changed the number of dark red walking beans over time. writing part