Natural selection is when the more and better adapted organisms survive to reproduce and the weaker and less adapt die.
Answer:
I would think it'd be
B. Block B must have greater density that block A
Explanation:
Answer:
Box one: A compound
Box two: bonded chemically
Explanation:
it's a molecule, which is a collection of atoms bonded together chemically through their electrons.
hope that helps!
Answer:
The oxygen molecules move, by diffusion, out of the capillaries and into the body cells. While oxygen moves from the capillaries and into body cells, carbon dioxide moves from the cells into the capillaries. Carbon dioxide is brought, through the blood, back to the heart and then to the lungs
Explanation:
Need sugar for energy because both plants and animals need carbohydrates to function. Carbohydrates become starches in plants and glycogen in animals.
