The answer is systematic circulation.
I believe that the correct answer would be : Different types of organisms have different numbers of chromosomes.
I hope that this helps you !
I think i see what he means the answer is B.
but correct me if i'm wrong.
The part of the phospholipid molecule that will face the water, as it is labelled to be hydrophilic would be the polar phosphate group. The correct response would be A.
Water.....lol. H2O? Water with salt is called salt water so without it is just water lol.
