The tricuspid valve does this between the right atrium and ventricle. ... At the end of diastole, your heart's atria contract and pump blood into the ventricles. The atria then begin to relax. Next, your heart's ventricles contract and pump blood out of your heart.
Answer:
C. Phospholipids
Explanation:
So sorry if I am wrong, but I hope this helps!
Answer: Acid rain makes such waters more acidic, which results in more aluminum absorption from soil, which is carried into lakes and streams. Trees' leaves and needles are also harmed by acids... They are most clearly seen in aquatic environments, such as streams, lakes, and marshes where it can be harmful to fish and other wildlife.
Explanation: YW <3