Answer:
carbohydrates
Explanation: its protein and fats for us
Answer:
guard cells
Explanation:
they control the opening and closing of the stomata
Answer:
D. Oxygen
Explanation:
Plants absorb carbon dioxide (CO2) and release oxygen for humans and animals to breathe in. Afterward, they'll release CO2 for plants to absorb, which forms a cycle.
Answer:
one of the smallest stars
Explanation:
there are trillions of stars and most of them are millions of times the size of our sun
Answer:
a
Explanation:
A. Channel and carrier proteins move substances in a certain direction, regardless of their concentration gradients.
