Describe how predation is good for the overall health of an ecosystem, what will happen if predators were eliminated from an ecosystem? Use an example with at least two organisms to make your point.

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons

Ascientist wanted to formulate a pill to attack a specific type of bacteria that infects the throat. which biological component would be best to use as a model for the pill's function? bacteriocytes phagocytes complement antibodies

There are only about 250,000 known fossil species. true or false