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love history [14]
3 years ago
5

Archaea are typically found living in extreme environments. An exception to this are the A. sulfur-oxidizing archaea.B. sulfur-r

educing archaea.C. methanogens.D. sulfur-oxidizing archaea AND sulfur-reducing archaea.
Biology
1 answer:
eduard3 years ago
3 0

Answer:

C - Methanogens

Explanation:

As their name says, methanogens are organisms that produce methane, turning CO₂ and H₂ into methane and water as a way of obtaining energy.

While some methanogens are found in extreme environments, the most common place where you can find them is inside the human body, as a part of the human microbiota.

The human microbiota is the set of all living organisms that live inside the human body, helping it in different ways. Methanogens, in particular, are present in the gut and produce the methane expulsed in flatulences, being an important part of the process of digestion by reducing H₂ levels.

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Answer:

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Failure of segregation of homologous chromosomes during anaphase I or failure of segregation of sister chromatids during anaphase II leads to the presence of the abnormal number of chromosomes in resultant gametes. In the given example, the egg mother cell with 48 chromosomes (24 pairs) would enter meiosis I but the failure of one pair of homologous chromosomes to segregate from each other followed by normal meiosis II would result in the formation of two gametes with one extra chromosome and two gametes with one less chromosome.

On the other hand, if the nondisjunction occurs at anaphase II of meiosis II, two normal gametes, one gamete with one extra chromosome and one gamete with one less chromosome will be formed. Therefore, nondisjunction at anaphase I or anaphase II would have resulted in the production of eggs with one extra chromosome.

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