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Cells

Which of the ...

Question

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

A

a and c

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B

a only

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C

c and d

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D

d and e

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Solution

The correct option is C c and d
In Coelenterata and Ctenophora, the arrangement of cells is complex. Here the cells performing similar function are arranged into tissues, hence tissue level of organisation is seen in them.

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Similar questions

Q. Match the following:

Column I	Column II
A. Choanocytes	I. Platyhelminthes
B. Cnidoblasts	II. Ctenophora
C. Flame cells	III. Porifera
D. Comb plates	IV. Coelenterata

Q. Match the column
phylum characteristics
1.Mollusca a) Trunk
2. Hemichordata b) mantel
3. ponifera c) Tentacles bearing
4. Coelenterata d) collar cells
5. Cyclostomata e) Tunie
6. Urochordata f) Sucker

Q. Match the columns and find the correct option

(a)	Choanocytes	(i)	Arthropoda
(b)	Cnidoblasts	(ii)	Ctenophora
(c)	Green gland	(iii)	Porifera
(d)	Nephridia	(iv)	Coelenterata
(e)	Comb plates	(v)	Annelida

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.

Question 27
Real organs are absent in

(a) Mollusca
(b) Coelenterata
(c) Arthropoda
(d) Echinodermata

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