Afriend of yours is trying to get pregnant. she is asking you on which day(s) during her menstrual cycle would she have the greatest chance of conceiving? (conceiving means fertilization)

Which element is used in photosynthesis found in atmosphere and fixed by bacteria?

In addition to seeds, which of the following characteristics are unique to the seed-producing plants? a) sporopollenin b) lignin present in cell walls c) pollen d) use of air currents as a dispersal agent e) megaphylls

Select the correct answer from each drop-down menu. during the day, plants produce by splitting water molecules in the light-dependent reactions of photosynthesis. at the same time, plants use cellular respiration to produce some of the needed by the light-independent reactions to make sugars. during the night, plants produce because takes place.