“Diffusion sees molecules in an area of high concentration move to areas with a lower concentration, while osmosis refers to the process by which water, or other solvents, moves through a semipermeable membrane, leaving other bits of matter in its wake.”
Reference: sciencing.com
Hope this helps! :)
Pretty sure it’s B) BB and Bi since they both hav the dominant B gene and would exhibit the only phenotypic B trait
Cold air is high density compared to hot air which is less dense
D is the answer because down's syndrome is a genetic disorder caused by the presence of a third copy of chromosome 21.