Answer:
(I'm sorry, I got stuck between a and b. This was the best answer I could come up with)
Explanation:
Capillaries are meant to be small so blood cells could move through them in a single file line. If they were an bigger the blood stream would clog up and most of the blood cells won't be able to give nutrients or exchange gas
"Photosynthesis" is the natural method which removes Carbon Dioxide from the atmosphere
Hope this helps!
Answer:
Hypothesis, the amount of light must be enough to provide for the plant but not too much where it'll die and vice versa.
The amount of water should be enough that the plant can absorb it to sustain itself but too much or too little
Plant food in small quantities will help but too little or too much won't
Explanation: