Which molecules are needed for photosynthesis? What are the products of photosynthesis? Select all answer choices that are correct.
A.
Carbon dioxide is needed for photosynthesis.
B.
Water is needed for photosynthesis.
C.
Sugar (glucose) is needed for photosynthesis.
D.
Oxygen is a product of photosynthesis.

Vegetation that grows along the floors of tropical and temperate forests is called undergrowth. how is the undergrowth of a tropical rain forest most likely to differ from the undergrowth of a temperate forest? a. a tropical rain forest's undergrowth most likely experiences periods of dormancy during colder weather. b. a tropical rain forest's undergrowth most likely experiences periods of dormancy during rainy weather. c. the undergrowth of a tropical rain forest most likely requires less sunlight. d. the undergrowth of a tropical rain forest most likely requires more sunlight.

When analyzing tree rings, what do scientists assume a thin ring indicates?

What is true of all organisms in the kingdoms protista, plantae, fungi, and animalia? a. they are multi-celled. b. they are photosynthetic. c. they have cells that contain membrane-bound organelles. d. they contain cells that lack membrane-bound organelles.