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.Dr. Rafat Siddiquia,

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Nihal SagharBachchan Ali Khan

1.Define immunity. Give an account of innateimmunity and acquired immunity.

2.What is drug / alcohol addiction? Explain the causesand consequences of addiction. Write a note onvarious categories of psychotropic drugs.

3.What is animal husbandry? Explain the managementof farms and farm animals. Write a note on animalbreeding.

Last Date of Submission: Z 0- 01..2017

MM: 07

SAIYYID HAMID SENIOR SECONDARY SCHOOL (BOYS),ALIGARH MUSLIM UNIVERSITY, ALIGARH.

HOME ASSIGNMENT: 2016-17CLASS: XII

SUBJECT: ZOOLOGY

Nihal SagharBachchan Ali I(han~

Dr. Ilafat Siddiquiq,

I.Describe the human digestive system giving labeleddiagram. Explain the digestion and absorption offood in alimentary canal.

2.Describe the human respiratory system andmechanism of breathing.

3.Explain the mechanisms of exchange and transport ofrespiratory gases in human body.

Last Date of Submission: 20- 01- ~ C I 7

Ml\1: 07

SAIYYID HAMID SENIOR SECONDARY SCHOOL (BOYS),ALIGARl-I MUSLIM UNIVERSITY, ALIGAI~H.

HOME ASSIGNMENT: 2016-17CLASS: XI

SUBJECT: ZOOLOGY