Match List - I with List - II . List - I List - II (a) Physalia (i) Pearl oyster (b) Limulus (ii) Portuguese Man of War (c) Ancylostoma (iii) Living fossil (d) Pinctada (iv) Hookworm

( a ) − ( ii ) ; ( b ) − ( iii ) ; ( c ) − ( iv ) ; ( d ) − ( i )

( a ) − ( ii ) ; ( b ) − ( iii ) ; ( c ) − ( i ) ; ( d ) − ( iv )

( a ) − ( iv ) ; ( b ) − ( i ) ; ( c ) − ( iii ) ; ( d ) − ( ii )

( a ) − ( i ) ; ( b ) − ( iv ) ; ( c ) − ( iii ) ; ( d ) − ( ii )

HARD

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Important Questions on Classification of Animal Kingdom

EASY

Biology>Diversity in the Living World>Classification of Animal Kingdom>Phylum Coelenterata

Metagenesis refers to:

EASY

Biology>Diversity in the Living World>Classification of Animal Kingdom>Phylum Coelenterata

Which one of the following living organisms completely lacks a cell wall?

EASY

Biology>Diversity in the Living World>Classification of Animal Kingdom>Phylum Coelenterata

Select the taxon that represents both marine and freshwater species.

MEDIUM

Biology>Diversity in the Living World>Classification of Animal Kingdom>Phylum Coelenterata

Match List $- I$ with List $- II$ .

List $- I$		List $- II$
(a)	Physalia	(i)	Pearl oyster
(b)	Limulus	(ii)	Portuguese Man of War
(c)	Ancylostoma	(iii)	Living fossil
(d)	Pinctada	(iv)	Hookworm

EASY

Biology>Diversity in the Living World>Classification of Animal Kingdom>Phylum Coelenterata

Match the following.

List I	List II
A) Gorgonia	I) Crustacea
B) Trichuris	II) Polyplacophora
C) Astacus	III) Anthozoa
D) Lepidopleurus	IV) Scaphopoda
	V) Aphasmidia

The correct answer is:

MEDIUM

Biology>Diversity in the Living World>Classification of Animal Kingdom>Phylum Coelenterata

What is this cnidarian group with quantitatively/relatively large mesoglea? What is the significance of such a well-developed mesoglea pertaining to the aquatic life of that group?

HARD

Biology>Diversity in the Living World>Classification of Animal Kingdom>Phylum Coelenterata

Write a short note on the salient features of the anthozoans.

EASY

Biology>Diversity in the Living World>Classification of Animal Kingdom>Phylum Coelenterata

What is the type of body plan in Hydra?

MEDIUM

Biology>Diversity in the Living World>Classification of Animal Kingdom>Phylum Coelenterata

Represent the union of two sets by Venn diagram for each of the following.

$X = {x | x$ is a prime number between $80$ and $100}$

$Y = {y | y$ is an odd number between $90$ and $100}$

EASY

Biology>Diversity in the Living World>Classification of Animal Kingdom>Phylum Coelenterata

Gastrozooids present in some cnidarians like Physalia are useful for

EASY

Biology>Diversity in the Living World>Classification of Animal Kingdom>Phylum Coelenterata

Which of the following do not have polyp form

EASY

Biology>Diversity in the Living World>Classification of Animal Kingdom>Phylum Coelenterata

Which one of the following living organisms completely lacks a cell wall

EASY

Biology>Diversity in the Living World>Classification of Animal Kingdom>Phylum Coelenterata

Which of the following organisms possess a skeleton made of calcium bicarbonate?

MEDIUM

Biology>Diversity in the Living World>Classification of Animal Kingdom>Phylum Coelenterata

What is the chief difference between the Hydrozoa and the rest of the cnidarians regarding the germinal layer in which its 'defensive structure' or cell defence occur?

EASY

Biology>Diversity in the Living World>Classification of Animal Kingdom>Phylum Coelenterata

Identify the following four animals (A, B, C and D) given below. Which one of these is not correctly identified in the option given along with its correct taxonomic group and their common name?

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