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10 questions · self-marked practice — reveal the answer and mark yourself.

Question 11 Mark

Which is called the lungs of the earth and why.

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Question 21 Mark

Birds live near the places where animals graze to get food. What is this Interaction called. Explain.

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Question 31 Mark

Write two harmful effects on humans due to the use of transgenic plants.

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Question 41 Mark

What is sewage.

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Question 51 Mark

Biogas technology in India has been developed by whom.

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Question 61 Mark

Mention any two simillar characteristics of human and apes.

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Question 71 Mark

Draw a labelled diagram of the structure of messenger RNA.

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Question 81 Mark

What is phenyl ketonuria disease.

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Question 91 Mark

Write the name of Hormone involved in the process of Parturition.

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Question 101 Mark

What is called Cleistogamy.

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BIOLOGY 1 Marks Question

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