The skull is designed to protect the brain.
Yes. Indirectly, through plants. Without plants using photosynthesis, and therefore, creating oxygen, we wouldn't have enough breathable air.
Earths food chain starts with the sun then it goes to producers such as plants that absorbs the sun’s energy to produce their own “food”
Looks like the order they appear in is the correct order.
1. Question-wording bias
2. Under-coverage
3. Response bias
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.
Hope this helps!
