Eukaryotic cells require mitochondria because the mitochondria is the organelle that converts food (or protein) into energy.
would be the answer to this question. Behavioral Adaptation means a specific object helps the host body. Which would be C. A cactus needs that water survive.
Answer:
Mutation. A mistake made while DNA copies which causes changes in DNA
Explanation:
Answer: The environment changed suddenly from a shallow ocean setting to a river system.
Explanation: Changes seen in rock layers represent changes in Earth's local history. The rock layer stack overall shows a shallow ocean setting. But the youngest layer at the top was deposited by a river. This shows the geologist that the local environment changed suddenly from an ocean setting to a river system.
