In some animal groups, the body is found divided into compartments with at least some organs. This characteristic feature is called

1.  Segmentation

2.  Metamerism

3.  Metagenesis

4.  Metamorphosis

 

Subtopic:  Basis of Classification |
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Given below are types of cells present in some animals. Which of the following cells can differentiate to perform different functions?

1. choanocytes

2. interstitial cells

3. gastrodermal cells

4. nematocytes

 

Subtopic:  Basis of Classification |
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Match the following list of animals with their level of organisation.
Animal Division of Labour
i. Pheretima
ii. Fasciola
iii. Spongilla
iv. Obelia
A. Organ level
B. Cellular aggregate level
C. Tissue level
D. Organ system level
Choose the correct match showing division of labour with animal example.
1.  (i)-B, (ii)-C,(iii)-D and (iv)-A
2.  (i)-B, (ii)-D,(iii)-C and (iv)-A
3.  (i)-D, (ii)-A, (iii)-B and (iv)-C
4.  (i)-A,(ii)-D,(iii)-C and (v)-B
Subtopic:  Basis of Classification |
 90%
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Body cavity is the cavity present between body wall and gut wall. In some animals the body cavity is not lined by mesoderm. Such animals are called.

1.  Acoelomate

2.  Pseudocoelomate

3.  Coelomate

4.  Haemocoelomate

Subtopic:  Basis of Classification |
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