Which of the following functions belongs to the cellular membrane? A. keeps the organelles in place

B. protects the cells from its surroundings

C. acts as an "ID card" for cells

D. allows large molecules to move from one side of a cell

I'm not really that good at biology, so please help...

Genetic disorders can result when sister chromatids fail to seperate properly. during what phase is this problem most likely to occur?

Which of the following types of stars is most likely to end up as a supernova? in graph a, the curve peaks at 800 nm, in the red section of the visible light spectrum. in graph b, the curve peaks at 550 nm, in the green section of the visible light spectrum. in graph c, the curve peaks at 450 nm, in the blue section of the visible light spectrum. in graph d, the curve peaks at 300 nm, in the violet section of the visible light spectrum. a b c d

How far away is the nearest black hole from earth?