Which of the following conditions characterizes atmosphere ill?
-nitrogen-rich and oxygen-poor
- hydrogen- and helium-rich
-nitrogen- and oxygen-rich
-water vapor- and carbon dioxide-rich

In what part of a chloroplast does glucose production occur? a. atp synthase b. photosystem ii c. photosystem d. stroma

Which is an example of a decomposer? a. bear b.algae c.grass d.bacteria d bacteria

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.