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Phylum Porifera

The animals w...

Question

The animals which are exclusively aquatic, sessile, with cellular level of organisation of the body are placed in phylum _____

A

Protozoa

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B

Porifera

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C

Ctenophora

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D

Cnidaria

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Solution

The correct option is B
Porifera

Phylum Porifera includes the sponges, which are exclusively aquatic, sessile, and exhibit cellular level of organisation of body matter. It is also the only phylum that comes under sub-kingdom Parazoa in the Animal Kingdom.

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Similar questions

Q. Which animals are known for cellular level of body organisation?

Q. Which of the following phylum exhibit tissue level organization ?
(a) Porifera
(b) Mollusca
(c) Coelenterata
(d) Ctenophora
(e) Platyhelminthes

Q. Consider the following features

A. Exclusively marine, radially symmetrical,diploblastic organisms with tissue level of organisation.
B. The body bears eight external rows of ciliary comb plates.
C. Digestion is both extra cellular and intra cellular.
D. Exhibit Bioluminescence.

The above mentioned features belong to the animal

Q. Which of the following statements are true/false?
I. In higher phyla cellular level of organisation is seen.
II. Phylum Platyhelminthes have cellular level of organisation.
III. Cellular level of organisation is seen when the cells are not arranged as loose cell aggregates.
IV. Molluscs exhibit tissue level of organisation.

Q. Which of the following are correct?
(i) Sponges : Cellular level of organisation
(ii) Cnidaria : Tissue level of organisation
(iii) Platyhelminthes : Organ level of organisation
(iv) Annelids, Arthropods, Molluscs, Echinoderms and Chordates : Organ system level of organisation.

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