Cell membranes contain membrane proteins found within the layer. describe at least four functions of membrane proteins and explain why each is important to the cell.

*will mark brainliest to first correct answer* photosynthesis led to increasing levels during the later proterozoic eon? a. oxygen b. water c. carbon dioxide d. none of the above

The distribution of related animals and plants across the world

What is a sex-linked genetic disorder that disrupts the blood's ability to clot? a. achondroplasia b. huntington's disease c. hemophilia d. albinism