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Phylum Ctenophora

How many rows...

Question

How many rows of comb plates are seen in ctenophores?

A

Six

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B

Four

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C

Two

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D

Eight

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Solution

The correct option is D Eight
The body of a ctenophore typically bears eight external rows of ciliated comb plates, which help in locomotion.

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Similar questions

Q. Read the following statements:
(i) Exclusively marine
(ii) The body bears eight rows of ciliary comb plates
(iii) Comb plates help in adhesion
(iv) Sexes are separate
(v) Fertilisation is external with direct development

How many statements is/are correct for ctenophores?

Q. Comb plates of ctenophores possess

Q. Bodies of the comb jellies have external rows of comb plates.

Which one of the following statements is incorrect?

(a) In cockroaches and prawns excretion of waste material occurs through Malpighian tubules.

(b) In ctenophores, locomotion is mediated by comb plates.

(c) In Fasciola Flame cells take part in excretion

(d) Earthworms are hermaphrodites and yet cross fertilisation take place among them.

Q. Read the following statements.

(a) Metagenesis is observed in helminths.

(b) Echinoderms are triploblastic and coelomate animals.

(c) Roundworms have an organ-system level of body organization.

(d) Comb plates present in ctenophores help in digestion.

(e) Water vascular system is characteristic of echinoderms.

Choose the correct answer from the options given below:

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