Cellular membranes are self-sealing. If they are punctured mechanically, they quickly and automatically reseal. What are the properties of membranes that are responsible for this important feature

20 the compound al(nh3)2 has atoms of nitrogen.

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

Which process in respiration happens first? a)pyruvate processing b)electron transport chain c)krebs cycle d)glycolysis