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What happens in bone density during osteoporosis and write its causes?

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How energy flows in an ecosystem?

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Define alternation of generation

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What is microspore?

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Define locomotion and movement?

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Define nerve impulse

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Define "Osmoregulation

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Define internal fertilization with example?

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How can you explain the term selective re-absorption?

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Write a short note on the achievements of genetic engineering

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What are Alveoli

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How can you differentiate between nitrification and denitrification

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What is the size and weight of human kidney?

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Define Homeostasis with an example

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Define antagonisms

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What is the relationship between honeyguide and badgers?

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How can you explain thunderstorm and the difference in traveling of sound and light produced from it

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What are the effects of global warming

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What is the difference between acute and chronic bronchitis?

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What do you know about the work of UNDP

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