The answer would be A. a virus
The question states that the blood was filtered thru a porous material that prevented <u>all cells </u>from passing thru.
All of the options are cells except viruses.
Hope this helps:)
a is the answer pls mark brainliest
Answer:
Photosynthesis removes carbon from the atmosphere, and cellular respiration releases carbon back into the atmosphere
Explanation:
The sympathetic nervous system is a part of the autonomic nervous system that carries stress responses or "flight or flight" responses that involves feelings of rush. The activation of sympathetic nervous system therefore increases the heart rate. The parasympathetic nervous system is another part of the autonomic nervous system which is responsible for "rest and digest" responses that involves feelings of relaxation. The activation of the parasympathetic nervous system decreases the heart rate.
Answer:
The plant which I think it says clover i can see
Explanation:
plants are primary sources of energy because it makes it own food and doesn't take form other animals.