Answer:
pericardium
Explanation:
A double-walled membrane, the pericardium, separates the right and left chambers, preventing oxygen-rich blood from mixing up with the one without oxygen. So, the heart functions go smoothly. Deoxygenated blood enters the right atrium.
c
C is this answer because they are both dominant and the same
Water cycle
Water rains from the cloud into the ocean. Then the water gets sucked back up to atmosphere of the clouds
1/2N
took the quiz
False
It does not have to touch it in order to have a effect on it.
