Question

Choose the correct answer :
1.
Which of the following organisms do not reproduce by spores
A) Rhizopus
B) Mucor
C) Planaria
D) Bacteria​

Answer 1

Answer:

bacteria

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Answer 2

There will be two broad answers to this question.

• C). Planaria does not reproduce by forming spores.
• D). Bacteria produce spores but spore formation in bacteria has no role to play in the asexual mode of reproduction.
• Planaria undergoes an asexual mode of reproduction. It does not form spores but reproduces through the mode of regeneration.
• Bacteria form spores only during unfavorable climatic conditions.
• Usually, bacteria reproduce through the mode of fission of cells.

Hence, the correct answer will be C). Planaria is an organism that does not reproduce by spores. D). Bacteria also do not reproduce by spores under favorable conditions. To escape unfavorable climatic conditions, spore formation in bacteria takes place.

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