Answer:
Explanation:
They are heteroatomic atoms having two different types of atoms.
In this Josephine is correct. While red will most commonly occur, if the 'r' is there then under Mendel's rules, a 3 to 1 ratio will appear. Ie for ever 3 red flowers, one flower will be the other colour.
If capillaries were thicker, nutrient and gas transfer would be much more difficult. Capillaries are only one cell thick so that it is easy for gases (oxygen and carbon dioxide), nutrients, and wastes to diffuse into and out of the blood. If they were thick, this diffusion would be much harder or impossible.
