When someone's pancreas stops producing the hormone that lowers blood sugar because the person hasn't eaten recently
When someone's pancreas hormone increases every time they eat, but decreases when they aren't eating
When a person takes calcium supplements so a gland will stop secreting a hormone that pulls calcium from the bones
Animal cells form animals
Plant cells form plants
Answer:
Natural selection
Explanation:
Natural selection is a process that causes heritable/favorable traits that are helpful for survival and reproduction to become more common as time goes on, and it gets passed from generation to generation.
Answer: Chemical reactions occur when chemical bonds between atoms are formed or broken. The substances that go into a chemical reaction are called the reactants, and the substances produced at the end of the reaction are known as the products.
Explanation:
