The blood circulates, so blood is reused constantly. There's no break in the circle, so it is a closed system
Proteins
Enzymes are proteins that can lower activation energy of reactions in the body (I think).
Answer:
D.
Explanation:
<em>It izz wat it izzzz!!!</em>
<em> </em><em>:)</em>
Answer:
The answer is "Cold temperatures in the North favor the survival of populations of larger sparrows over populations of smaller sparrows"
Explanation:
I hope this helps!!
Please as brainliest if correct. ;-)
ose
Carbohydrates
ase
the amount of energy used
