Answer:
produce and secrete hormones, chemical substances produced in the body that regulate the activity of cells or organs.
Explanation:
produce and secrete hormones, chemical substances produced in the body that regulate the activity of cells or organs.
Oxygen and glucose
Hope that helps :)
Answer:
don't know
Explanation:
because i don't have aby idea
Burning charcoal, heat from an electric heater, fire or a radiator emitting warmth those are just a few