The answer is basically D
Answer:
Wood is made up differently and it has less gravity. Wood also has air holes in it
I think it's cells because cells are the smallest living things its the basic unit of organization of all organisms
Answer:
proteins. Explanation: The muscle contraction needs two protein that is essential in contraction. The muscle has motor protein myosin and spherical protein actin that are slide on one other in contraction that helps in muscle to contraction.
Explanation: