Which is an important difference between light-dependent (l-d) and light-independent (l-ind) reactions in photosynthesis? a. the l-d reactions need co2 and light energy, and the l-ind reactions needs water and o2. b. the l-d reactions require light energy and water, and the l-ind reactions require atp, nadph and co2. c. the l-d reactions can only occur during daylight, and the l-ind reactions can only occur during the night. d. the l-d reactions need water and co2, and the l-ind reactions need co2 and light.

Select the correct answer. which of the following statements is a scientific claim? a. the early solar system had large amounts of water; so, the oldest objects in the solar system should also be abundant in water. b. the mass of the universe is much greater than current models predict; it is not possible to explain this inconsistency. c. planet earth is abundant in water, but there is no way to scientifically determine from where earth's water originated. d. earth is shaped like a sphere even if not all of the scientific observations related to its shape support this idea.