CBSE Class 11 Biology Zoology Assignment

SECTION – A 

Answer all the questions. Every answer should be restricted to four lines only.

1. Explain tautonymy. Give one example.

2. Name two larval forms of sponges.

3. What is endostyle? What is its function?

4. What is biological magnification?

5. What is a paurometabolous development? Give one example.

6. What is lymph? How does it differ from plasma?

7. Define mutualism? Give one example.

8. The head of cockroach is said to be hypognathous. Justify the statement

9. What is nocturnal periodicity? Give one example.

10. What is nitrogen fixation? Give one example of an organism that fixes nitrogen.

SECTION-A

Answer all the questions (Very Short Answer Type) 

1. Define chyme and chyle ?

2. Name the muscles that help in breathing movement of man ?

3. How many pace makers are present in the human heart ? What are they ?

4. What is a sarcomere ?

5. Name the meninges of the mammalian nervous system from the outer most to the inner most ?

6. Write the functions of Leydig cells and Sertoli cells ?

7. Distinguish between ‘Humoral immunity’ and ‘Cell mediated immunity’.

8. How is acromegaly caused ?

9. Write any four important advantages of poultry farming ?

10. What is the principle involved in X ray radiography.
 

SECTION-B

Answer any Six Questions (Short Answer Type) 

11. Explain the process of digestion in the stomach.

12. What are the bio-chemical changes that occur in a muscle during contraction.

13. Write a brief note on Morphological Evidences in favour of organic evolution?

14. Draw a diagram of internal structure of testis.

15. Write a brief note on different types of immunities ?