Proteins comprise about of the mass of membranes, and are responsible for most of the membrane's properties.

Which of these is not a function of some membrane proteins ? a.allowing polar molecules to enter the cell b.recognizing other types of cells c.receiving messeges from other cells b.carrying messages to oher cells

Earths energy sources include both renewable and nonrenewable resources. name at least three sources of energy that could be used in your house. then describe the ideal energy source for generating most of your homes electricity, and explain why you chose that source. can someone give me some ideas, i’m kinda confused.

This diagram shows how seed plants are grouped. which is the missing label? bryophytes angiosperms pteridophytes monocots