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Delhi - 2012
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Q8 of 30 Page 1

Write what do phytophagous insects feed on.

Phytophagous insects feed on plant sap and other parts of the plant. Examples include grasshoppers, crickets, etc.


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6

(a) Name the following: The semi-dwarf variety of wheat is high-yielding and disease-resistant.

(b) Name the following: Any one inter-specific hybrid mammal.


7

Write the similarity between the wing of a butterfly and the wing of a bat. What do you infer from the above with reference to evolution?

9

(a) Highlight the role of thymus as a lymphoid organ.

(b) Name the cells that are released from the above-mentioned gland. Mention how they help in immunity.


10

Why do clown fish and sea anemone pair up? What is this relationship called?

Questions · 30
Delhi - 2012
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