The concentration of solutes in a red blood cell is about 2%. Sucrose cannot pass through the membrane, but water and urea can. Osmosis would cause red blood cells to shrink the most when immersed in which of the following solutions? Why?
(a) pure water(b) a hypertonic urea solution(c) a hypotonic sucrose solution(d) a hypertonic sucrose solution

Which best compares habitat and niche? o niche is a place in which organisms live, and habitat is the way in which an organism fits into its habitat. o habitat is a place in which organisms live, and niche is the way in which an organism fits into its habitat. habitat is a group of organisms that live in an area, and niche is a specific species that lives in that areao niche is a group of organisms that live in an area, and habitat is a specific species that lives in that area.

Human genes only differ by less than percent. a. 1 b. 6 c. 11 d. 16

Which describes the habitat of a frog?