Which of the following is NOT a characteristic of a desert ecosystem?
Odry and hot
dry and cold
few plants grow here
covers one-half of the earth

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.

If a checkpoint detects damaged dna, the checkpoint may

20 how are energy cycles and growth cycles related?