If the blood flow to the brain ceases for 5 to 10 seconds, the muscles will start to twitch convulsively whithin how long?

Wich organism obtains its energy from dead or decaying matter

What is the main function of the central vacuole in a plant cell? a. absorbs energy from the sun to produce food b. holds water and maintains turgor pressure c. breaks down molecules to release energy d. contains the cell's genetic material

Coral have a symbiotic relationship with what in order to eat?