Board Paper of Class 12-Science 2006 Biology Delhi(SET 1) - Solutions
General Instructions:
(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.
(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 prevents collapsing of our trachea during breathing?
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- Question 2
What advantage does the sea anemone get in the sea anemone−hermit crab facultative mutualism? Give an alternative term for this kind of mutualism.
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- Question 3
Name the nitrogenous waste excreted in the larval and adult stages of frog respectively.
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- Question 4
In a wheat field, some broad-leaved weeds were found by a farmer. Which phytohormone can be used to eradicate them?
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- Question 5
Correct the statement given below with respect to brazzein: “Brazzein is a high calorie carbohydrate.”
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