True or false: ecosystems are more numerous than biospheres

Which of the following is the best definition for the process of photosynthesis? a.) plants digest sugars to make energy. b.) plants use oxygen and glucose to make carbon dioxide. c.) plants use sunlight and carbon dioxide to make sugars. d.) plants use sunlight to make chlorophyll and chloroplasts.

What are characteristics of minerals? select 3 choices

All ova contain sex chromosomes corresponding to: x y xx xy