NEET BIOLOGY

BIOLOGICAL CLASSIFICATION

KINGDOM ANIMALS

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

METAGENESIS IS FOUND IN COELENTERATES WHERE POLY GIVES RISE TO MEDUSA AND VICE VERSA.WHICH OF THE FOLLOWING IS RIGHT IN RESPECT OF ABOVE PHENOMENON?

A	POLYPS PRODUCE MEDUSAE ASEXUALLY AND MEDUSAE PRODUCE POLYP SEXUALLY
B	MEDUSAE PRODUCE POLYP ASEXUALLY AND POLYPS PRODUCE MEDUSAE SEXUALLY
C	BOTH OF THESE
D	NONE OF THESE

Explanation:

Detailed explanation-1: -So, the correct answer is (C) Polyps produce medusa asexually and medusa produces polyp sexually. Note: > Metagenesis is the phenomenon where one generation of certain animals reproduce asexually, while the next generation is sexually reproducing.

Detailed explanation-2: -Assertion [A]: Obelia exhibits metagenesis. Reason [R]: Obelia exists in both polyp and medusa form.

Detailed explanation-3: -So, the correct answer is hydrozoa.

Detailed explanation-4: -So, the correct answer is ‘Polyps produce medusae asexually and medusae produces polyp sexually’.

Detailed explanation-5: -In the phylum Cnidaria, which includes jellyfish and sea anemones, polyp and medusa are two different stages of the life cycle. In some species, these two stages alternate between each other, such as in Hydrozoa.

There is 1 question to complete.