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Answer 1

Answer:

2. Those who produce methane

gass are called metanogens

4. Yeast

6.Acidophiles they found in sulphur rings

Answer 2

1. effluent

2. Methanogens are microorganisms that produce methane as a metabolic byproduct in hypoxic conditions. They are prokaryotic and belong to the domain of archaea. They are common in wetlands, where they are responsible for marsh gas, etc.

3. Retting is a process employing the action of micro-organisms and moisture on plants to dissolve or rot away much of the cellular tissues and pectins surrounding bast-fibre bundles, and so facilitating separation of the fibre from the stem.

4.yeast

5. Human gastrointestinal microbiota, also known as gut flora or gut microbiota, are the microorganisms (generally bacteria and archaea), that live in the digestive tracts of humans. it secretes have co-developed in a way that is tolerant to, and even supportive of, the gut flora and that also provides a barrier to pathogenic organisms.

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