Why blood group o has not antigen on the surface of red blood cell? ?

Sarah is sitting at the top of the slide in the schools playground. which will increase sarah’s kinetic energy a- an additional child is added to the top of the slide. b- sarah is pushed and moves down the slide. c- sarah climbs down the ladder and off the slide. d- the ladder is moved to the other side of the yard.

Explain why phospholipid molecules form a bilayer. (3 marks)

Consider this plant cell which organelle is labeled g