The cycle repeats when the carbon stored in the atmosphere as carbon dioxide gas is taken in.

After fertilization, which type of cellular division is responsible for the growth and development of a complex, multicellular organism?

When is your respiration rate likely to change? a. when your intestines are digesting b. when your cells have too much glucose c. when your cells need more oxygen d. when your liver is working after a meal

What part of the brain is highlighted in the diagram below?