Board Paper of Class 12-Science 2007 Biology Delhi(SET 1) - Solutions
(i) All questions are compulsory.
(ii) This question paper consists of four sections A, B, C and D.
Section A contains 5 questions of one mark each.
Section B is of 10 questions of two marks each.
Section C is of 10 questions of three marks each and
Section D is of 3 questions of five marks each.
(iii) There is no overall choice. However, an internal choice has been provided.
(iv) Wherever necessary, the diagrams drawn should be neat and properly labelled.
- Question 1
What is the importance of the epiglottis in human body?
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- Question 2
What happens to the glycogen concentration in the liver cells when the level of adrenaline increases in the blood stream of humans?
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- Question 3
Mention the scientific term used for modified form of reproduction in which seeds are formed without fusion of gametes.
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- Question 4
What does ecological niche of an organism represent?
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- Question 5
It was diagnosed by a specialist that the immune system of the body of a patient has been suppressed. Name the disease the patient has been suffering from and its causative agent.
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