identify the correct statementSTATEMENT I : Halophiles are eubacteria ...
- Correct Answer: B: BOTH II AND III
- Explanation:
STATEMENT I : Halophiles are eubacteria living in salty areas - HALOPHILES are archaebacteria not eubacteria
- Statement II: Methanogens are indeed abundant in the guts of ruminants. These are a group of archaea that produce methane as a byproduct of metabolism in the digestive systems of ruminant animals like cows.
- Statement III: Thermoacidophiles are bacteria that thrive in hot, acidic environments like hot springs, demonstrating their ability to survive in extreme conditions.
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identify the correct statementSTATEMENT I : Halophiles are eubacteria ...
Understanding the Statements
To identify the correct statement(s) regarding halophiles, methanogens, and thermoacidophiles, let's analyze each statement individually.
Statement I: Halophiles are eubacteria living in salty areas
- Halophiles are indeed microorganisms that thrive in high-salt environments.
- However, they belong to the domain Archaea, not eubacteria (which are classified under Bacteria).
Statement II: Methanogens are abundant in guts of ruminants
- Methanogens are a type of archaea that produce methane as a metabolic byproduct.
- They are commonly found in the digestive tracts of ruminants, such as cows and sheep, where they play a crucial role in digestion.
Statement III: Thermoacidophiles are bacteria living in hot springs
- Thermoacidophiles are also a group of Archaea, not bacteria.
- They thrive in extremely hot and acidic conditions, such as those found in hot springs.
Conclusion
- Only Statement II is correct as it accurately describes the presence of methanogens in the guts of ruminants.
- Statements I and III incorrectly classify halophiles and thermoacidophiles as eubacteria instead of archaea.
Thus, the correct answer is option 'B', which states that only Statements II and III are correct.
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