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Alternation of Generations in Cnidarians

Medusa of Coe...

Question

Medusa of Coelenterata is

A

sexually reproducing

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B

free swimming

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C

umbrella shaped

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D

all of these

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Solution

The correct option is D all of these
Medusa is the sexually reproducing stage in the life cycle of Coelenterates such as Aurelia. It is a free-swimming form with an umbrella shape. As medusa is the sexual form, they produce gametes which fuse to form asexual form called polyp.

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Similar questions

Q. Find out the incorrect statement(s).

I. Polyp is sessile and cylindrical like Adamsia

II. Medusa is umbrella shaped and free-swimming like Aurelia

III. Polyps produce medusae sexually and medusae form the polyps asexually

IV. Medusae produce polyps sexually

Q. Which of the following statements regarding coelenterates are wrong?
I. Cnidocytes are present on the tentacles and on the body
II. They are diploblastic and have cellular level of organisation
III. Polyp forms are free-swimming
IV. They exhibit metagenesis
V. Polyps produce medusae sexually and medusae form polyps asexually

Q. Medusa of Coelenterata is

Q. Which of the following members of phylum Coelenterata lack a sexual medusa stage?

Q. Consider the following statements during the alternation of generation or metagenesis in dimorphic cnidarians, the polyps are:
(1) Sedentary
(2) Free living
(3) Polyp forms the medusa sexually
(4) Polyp forms the medusa asexually
Which of the following given statements are correct?

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Alternation of Generations in Cnidarians

Standard XII Biology

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