Match the following. Sub Division Character Example a Acoelomata i Coelom is formed by archenteron p Mollusca b Pseudocoelomata ii Without a body cavity q Hemichordata c Schizocoelomata iii Body cavity should not lined by mesodermal layers r Nematoda d Enterocoelomate iv Coelom is formed by splitting of mesoderm s Platyhelminthes

a - ii - s , b - iii - r , c - iv - p , d - i - q

a - ii - r , b - iv - s , c - iii - p , d - i - q

a - ii - s , b - iii - r , c - i - p , d - iv - q

a - iii - s , b - ii - r , c - iv - p , d - i - q

Match the species in Column-I with their respective feature of body organisation in Column-II Column-I Column-II P Mollusca i Pseudocoelom Q Annelida ii Radula R Nematoda iii Radial symmetry S Echinodermata iv Segmentation Choose the CORRECT combination.

P - ii , Q - iv , R - i , S - iii

P - ii , Q - i , R - iv , S - iii

P - iii , Q - iv , R - i , S - ii

P - iv , Q - iii , R - ii , S - i

Consider following features: Organ system level of organisation Bilateral symmetry True coelomates with segmentation of body. Select the correct option of animal group which possess all the above characteristics:

Annelida, Arthropoda and Chordata

Annelida, Arthropoda and Mollusca

Arthropoda, Mollusca and Chordata

Annelida, Mollusca and Chordata

EASY

Earn 100

Which of the body plan is found in nematodes?

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Important Questions on Structural Organisation in Animals

MEDIUM

Biology>Structural Organisation in Organisms>Structural Organisation in Animals>Coelom in Animals

Match the following.

Sub Division		Character		Example
$(a)$	Acoelomata	$(i)$	Coelom is formed by archenteron	$(p)$	Mollusca
$(b)$	Pseudocoelomata	$(ii)$	Without a body cavity	$(q)$	Hemichordata
$(c)$	Schizocoelomata	$(iii)$	Body cavity should not lined by mesodermal layers	$(r)$	Nematoda
$(d)$	Enterocoelomate	$(iv)$	Coelom is formed by splitting of mesoderm	$(s)$	Platyhelminthes

MEDIUM

Biology>Structural Organisation in Organisms>Structural Organisation in Animals>Coelom in Animals

The animals in which cleavages are radial and indeterminate and possess enterocoelom are generally:

EASY

Biology>Structural Organisation in Organisms>Structural Organisation in Animals>Coelom in Animals

Principal type of symmetry in triploblastic animals

EASY

Biology>Structural Organisation in Organisms>Structural Organisation in Animals>Coelom in Animals

Match the following and choose correct combination.

Column I		Column II
i)	Cellular grade level	a)	Pheretima
ii)	Tissue grade level	b)	Schistosoma
iii)	Organ level	c)	Obelia
iv)	Organ system level	d)	Sycon

MEDIUM

Biology>Structural Organisation in Organisms>Structural Organisation in Animals>Coelom in Animals

Match the following

	List - I		List - II
(a)	Asymmetry	(i)	Cnidaria
(b)	Radial symmetry	(ii)	Platyhelminthes
(c)	Bilateral symmetry and Enterocoelom	(iii)	Porifera
(d)	Bilateral symmetry without body cavity	(iv)	Hemichordata

The correct answer is

EASY

Biology>Structural Organisation in Organisms>Structural Organisation in Animals>Coelom in Animals

Radial symmetry is often exhibited by animals having

EASY

Biology>Structural Organisation in Organisms>Structural Organisation in Animals>Coelom in Animals

True symmetry found in an animal which can be divided into two similar halves by one plane only is ____.

EASY

Biology>Structural Organisation in Organisms>Structural Organisation in Animals>Coelom in Animals

Match the species in Column-I with their respective feature of body organisation in Column-II

	Column-I		Column-II
P	Mollusca	i	Pseudocoelom
Q	Annelida	ii	Radula
R	Nematoda	iii	Radial symmetry
S	Echinodermata	iv	Segmentation

Choose the CORRECT combination.

MEDIUM

Biology>Structural Organisation in Organisms>Structural Organisation in Animals>Coelom in Animals

Identify the correct statement with reference to 'Enterocoelomates'.

A Body cavity is formed from endodermal pouches

B. They display determinate type of cleavage

C. Enterocoelomates are deuterostomes

D. Hemichordates are enterocoelomates

EASY

Biology>Structural Organisation in Organisms>Structural Organisation in Animals>Coelom in Animals

Which of the following phyla possess body cavity as shown in the diagram below?

Question Image

EASY

Biology>Structural Organisation in Organisms>Structural Organisation in Animals>Coelom in Animals

Consider following features:

Organ system level of organisation
Bilateral symmetry
True coelomates with segmentation of body.

Select the correct option of animal group which possess all the above characteristics:

EASY

Biology>Structural Organisation in Organisms>Structural Organisation in Animals>Coelom in Animals

Bilaterally symmetrical and acoelomate animals are exemplified by

EASY

Biology>Structural Organisation in Organisms>Structural Organisation in Animals>Coelom in Animals

Which one of the following phyla is a pseudocoelomate

?

EASY

Biology>Structural Organisation in Organisms>Structural Organisation in Animals>Coelom in Animals

In protostome body plan, the mouth of the digestive tract develops first in the embryo.

EASY

Biology>Structural Organisation in Organisms>Structural Organisation in Animals>Coelom in Animals

The first animals which exhibit "Tube with in a tube" organisation are

EASY

Biology>Structural Organisation in Organisms>Structural Organisation in Animals>Coelom in Animals

Mention the characteristics of body plan of protostomes.

EASY

Biology>Structural Organisation in Organisms>Structural Organisation in Animals>Coelom in Animals

Explain blind sac body plan in animals.

MEDIUM

Biology>Structural Organisation in Organisms>Structural Organisation in Animals>Coelom in Animals

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 $100}$

HARD

Biology>Structural Organisation in Organisms>Structural Organisation in Animals>Coelom in Animals

All Schizocoelomates are protostomes while all protostomes are not schizocoelomates. Do you think the statement is correct? If not how do you defend your statement?

EASY

Biology>Structural Organisation in Organisms>Structural Organisation in Animals>Coelom in Animals

Name the phylum that shows tube within tube organisation.

Which of the body plan is found in nematodes?

Important Questions on Structural Organisation in Animals

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