Questions: Which of the following is not a eukaryote? A Canis familiaris, a pet dog B Malus pumila, an apple tree C Escherichia coli, a coliform bacterium D Flammulina velutipes, an enoki mushroom

Which of the following is not a eukaryote?

A Canis familiaris, a pet dog

B Malus pumila, an apple tree

C Escherichia coli, a coliform bacterium

D Flammulina velutipes, an enoki mushroom

Transcript text: Which of the following is not a eukaryote? A Canis familiaris, a pet dog B Malus pumila, an apple tree C Escherichia coli, a coliform bacterium D Flammulina velutipes, an enoki mushroom

Solution

The answer is C: Escherichia coli, a coliform bacterium.

Explanation:

Option A: Canis familiaris, a pet dog, is a member of the kingdom Animalia, which falls under the domain Eukarya. Therefore, it is a eukaryote.
Option B: Malus pumila, an apple tree, is a member of the kingdom Plantae, which also falls under the domain Eukarya. Therefore, it is a eukaryote.
Option C: Escherichia coli, a coliform bacterium, is a member of the kingdom Bacteria, which falls under the domain Bacteria. Bacteria are prokaryotes, not eukaryotes.
Option D: Flammulina velutipes, an enoki mushroom, is a member of the kingdom Fungi, which falls under the domain Eukarya. Therefore, it is a eukaryote.

In summary, Escherichia coli is not a eukaryote; it is a prokaryote.

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