The answer to this question is A
Answer: average popular size in a particular habitat. The species population size is limited by environmental factors like adequate food,shelter,water,and mates
Explanation:
Enzymes are meant to break down food in the mouth making it easier to consume and the food and gather the nutrients inside
The light will not light up,
; the circuit is incomplete
Also I consider this physics and electronics
Answer:
1) B - protein channel
2) D - to assist in the movement of substances across the membrane by facilitated diffusion or active transport
Explanation:
1) B is the answer because the proteins would travel through the protein channel to enter or leave the cell.
2) D is the answer because the channel allows protein molecules to pass through a selectively permeable cell membrane through active transport and facilitated diffusion.
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