Answer: Multiple populations in a given area
Benefits of living on land: Sunlight is brighter, since it doesn't have to go through water first. More carbon dioxide in the atmosphere than in the ocean. Mineral nutrients are plentiful in the soil.
Resident Also called normal or indigenous biota
First, the existence of an indigenous—or residential—microbiota is ancient. Such microbes are found in all animals which can be at the least as complicated as annelids (earthworms); this gives proof for the co-evolution of animals and micro organism for more than 800 million years (Schramm et al, 2003; Savage, 1977).
The indigenous microflora stimulates the host immune system to respond extra speedy to pathogen challenge and, through bacterial antagonism, inhibits colonization of the GI tract with the aid of overt exogenous pathogens.
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The correct answer for the blank is: Oatmeal.
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