The spongy mesophyll of leaves is found on the top of leaves, where most photosynthesis occurs.

Whats one way that rocks do not follow the typical rock cycle pathway?

The large increase in atmospheric carbon dioxide in the last 50 years most likely comes from a. an increase in cellular respiration b. increased decomposition by bacteria c. an increase in the burning of fossil fuels d. an increase in photosynthesis

How many electrons can occupy any electron orbital?