Answer:
Human activities have a tremendous impact on the carbon cycle. Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere
Yes, short answer, I can not give you the specifics (consult your biology textbook)
Answer:
Blood circulates through a network of vessels throughout the body to provide individual cells with oxygen and nutrients and helps dispose of metabolic wastes
Explanation:
did this help
B. Leaf cells. Because the rest aren’t right I think