Don’t know the answer to the first one but the last one should be histones
Except for the interactions between atoms....
Answer:
C
Explanation:
I think the answer is all of the above. Hypothesis is personal thinking, conclusion is including proof.
The endocrine system is comprised of endocrine glands that secrete hormones directly into the blood rather than through ducts. Glands are organs in the bodies of humans or animals that secrete chemicals for bodily use or to go into the environment. Ducts are tubular canals in the body that carry secretions from glands.
B! Cardiac muscle hope it helps sorry if it doesn’t!