Research diffusion and how it relates to the human body. E. G. red blood cells and oxygen

nside the air sacs, oxygen moves across paper-thin walls to tiny blood vessels called capillaries and into your blood. A protein called haemoglobin in the red blood cells then carries the oxygen around your body.

each of the 46 original chromosomes splits into two daughter chromosomes, so there are two sets of 46 daughter chromosomes that end up in each cell. human cells have 46 chromosomes. each chromosome consists of a pair of identical chromatids attached together by a structure called a centromere.

i use alot when i f my girlfriend. i'm doing her in the bathroom at summer school. shes getting her tight jeans off and then we'll begin

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