I would choose C.
A isn't the best of option because it does not directly mention fresh vs. salt water.
B does not make sense because it is discussing introduced species not native ones.
And D literally just has no relevance.
I would go with C because it is literally drawing attention to introduced species because of dumping ballast waters.
where are the examples? it would help if we could see them. Homeostasis is maintaining a stable internal environment despite changing external conditions. So if an organism was hot, then they might sweat to cool down.
<span> c. coal is too large to power cell work </span>
Reptile scales! Or, more specifically, reptiles descended from dinosaurs.
<span>An exercise session designed to promote weight loss should expend at least 250 calories as this is the lowest amount of calories that sufficiently constitute an appreciable quantity of fat and energy that the body has.</span>
