The control center and director of cell activities is the nucleus. The nucleus, which holds all of the DNA, is found at the center of the cell.
Answer:
B) They release oxygen that organism use to breathe.
Explanation:
The process of this is called Photosynthesis. The plant takes in carbon dioxide and sunlight. The sun and water makes it possible for the plant to make sugars which are glucose which is the plant's food. And the byproduct of that is oxygen.
The tricuspid valve shuts. This prevents blood from flowing backward into the right atrium while the ventricle contracts. So, your answer will be the Tricuslid Valve. Hope I helped!
A. they have shared matter.
Answer:
C.
Because plants reproduce like humans. It may seem like it is the wrong answer but it is right. I learned this in eighth grade my guy.
Explanation:
