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Cell Discovery and Cell Theory

Level of orga...

Question

Level of organisation in sponges is

A

Cellular level

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B

Acellular level

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C

Tissue level

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D

Organ-system level

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Solution

The correct option is A Cellular level
Option-(A) cellular level.
Sponges have cellular grade of organization.
They do not possess any structures that can be considered organs. Instead, sponge cells of various types are responsible for bodily functions, the day-to-day activities that sustain life.

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Similar questions

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.

Q. Assertion :Sponges exhibit cellular level of organisation. Reason: In sponges, cells are arranged as loose cell aggregates.

Q. Match the following levels of organisation with their respective example.

	Level		Example
A	Cellular	1	Chordates
B	Tissue	2	Platyhelminthes
C	Organ	3	Coelenterates
D	Organ system	4	Sponges

Match the following list of animals with their level of organisation:

Animal	Level of organisation
A. Pheretima	I. Organ level
B. Fasciola	II. Cellular level
C. Spongilla	III. Tissue level
D. Obelia	IV. Organ system level

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.

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