They are passed through reproduction
<span>the
end products of aerobic glucose breakdown are carbon dioxide and water;
the end product of anaerobic glucose breakdown is lactic acid</span>
no energy is accuring because your hands are too cold
Answer:
Flatworms and cnidarians
Explanation:
In simple organisms, such as cnidarians and flatworms, every cell in the body is close to the external environment. Their cells are kept moist so that gases diffuse quickly via direct diffusion. Flatworms are small, literally flat worms, which 'breathe' through diffusion across the outer membrane
