Identify the incorrect statement regarding bacteria: (1) Bacteria are the most abundant micro-organisms. (2) Bacteria also live in exterme habitats where other life forms cannot survive. (3) Bacteria as a group show the most extensive metabolic diversity. (4) They are obligate intracellular parasites.
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Statement 4 is the incorrect about bacteria.
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Bacteria are obligate intracellular parasites. This is an incorrect statement.
- Bacteria are organisms that are microscopic, and unicellular (single-celled) and exist in billions and millions in number in every environment whether outside or inside the other organisms.
- Bacteria eat food that involves the usage of some inorganic and most of the organic compounds which helps them to survive even in extreme conditions.
- Bacteria have a diversity that is the most extensive or substantial metabolic diversity and are both autotrophs and heterotrophs.
- Bacteria involves both heterotrophs and autotrophs. Bacteria that are heterotrophs produce energy by using organic compounds whereas bacteria that are autotrophs use inorganic substances like canon dioxide for synthesizing their food. They are either chemosynthetic or photosynthetic.
Hence, bacteria are found in abundance, live in extreme habitats, and show the most extensive metabolic diversity. So, the correct option is d.
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