Answer:
change through natural selection
Explanation:
I think A is the youngest layer, because of the new sediments that fell upon the animal.
Active transport requires energy because it moves molecules across a membrane to a region of lower to higher concentration which is often against their concentration gradient or has an obstructing factor.
Answer:
Extra carbon dioxide in the atmosphere increases the greenhouse effect. More thermal energy is trapped by the atmosphere, causing the planet to become warmer than it would be naturally Explanation: yeah
The best answer to go with is b you’re welcome
