The correct answer is- are normal microbiota for many individuals
Explanation:
Opportunistic organisms are those organisms that normally do not cause infection because their infection and growth are resisted by the host immune system and the presence of normal microflora of the body.
So opportunistic fungi can be present with normal microbiota in many individual without causing any infection but when the host immune system falls and the normal microbiota gets disturbed these opportunist fungi gets space and environment to grow and cause infection.
Some of the opportunistic fungi are- <em>Candida, Aspergillus, Cryptococcus</em>, etc. Therefore the correct answer is- are normal microbiota for many individuals.
Answer: C. Ranges and niches are moving farther North
Explanation:
Animals are moving north toward the North Pole to escape the heat. Towards the poles, the temperatures get colder. Because of global warming, the temperature zones move out towards the poles.
Lactic acid fermentation produces lactic acid, while alcoholic fermentation produces ethanol. Both fermentation pathways also oxidize NADH to NAD+ during the process.
