Question
a. Carbon
b. Carbon Dioxide
C.
Nitrogen Dioxide
d. Hydrogen
2. Photosynthesis is important to ecosystems Because
a. plants need air to breathe.
b. it makes the plants green.
C. photosynthetic organisms provide oxygen for other living
organisms.
d. without it, the Earth would all be desert.
3. The muscles of an athlete are stiff and burning after a workout. Ho
provide evidence of anaerobic respiration?
Answer
1. b. Carbon Dioxide
2. C. photosynthetic organisms provide oxygen for other living organisms.
3. The stiff and burning muscles of an athlete after a workout provide evidence of anaerobic respiration.