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NCERT Exemplar · Class 11 · Biology

Chapter 4: Animal Kingdom

Practice each question, then open the answer or worked solution.

Questions

13 questions
Q11Written answer

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

Division of Labour

Column I

A. Organ level

B. Cellular aggregate level

C. Tissue level

D. Organ system level

Animal

Column II

i. Pheretima

ii. Fasciola

iii. Spongilla

iv. Obelia

Choose the correct match showing the division of labour with animal example.

a. i-B, ii-C, iii-D, and iv-A

b. i-B, ii-D, iii-C, and iv-A

c. i-D, ii-A, iii-B, and iv-C

d. i-A, ii-D, iii-C, and iv-B

Show solutionHide solution
Worked solution

Option (c) is the answer.

Q12Written answer

The body cavity is the cavity present between the body wall and the gut wall. In

some animals, the body cavity is not lined by mesoderm. Such animals

are called

a. Acoelomates

b. Pseudocoelomates

c. Coelomates

d. Haemocoelomates

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Worked solution

Option (b) is the answer.

Q13Written answer

Match column A with column B and choose the correct option

Column I

A. Porifera

B. Aschelminthes

C. Annelida

D. Arthropoda

E. Echinodermata

Column II

i. Canal system

ii. Water-vascular system

iii. Muscular pharynx

iv. Jointed appendages

v. Metameres

a. A-ii, B-iii, C-v, D-iv, E-i

b. A-ii, B-v, C-iii, D-iv, E-i

c. A-i, B-iii, C-v, D-iv, E-ii

d. A-i, B-v, C-iii, D-iv, E-ii

Show solutionHide solution
Worked solution

Option (c) is the answer.