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Biology

Biology
Which of the following is the cellular respiratory centre?

Mitochondria
Ribosome
Nucleus
Golgi body

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Biology
Which one of the following processes takes place in lakes during eutrophication?

Excessive entry of nutrient into water
Loss of dissolved nutrients from water
Rapid destruction of algal growth
Excessive availability of dissolved oxygen

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Biology
Sweating is important

To open the pore of skin
To control the temperature of body
To excret the smell of body
For improvement of normal health

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Biology
One of the following is most suitable for study of mutations

Haploids
Diploids
Polyploid
Tetraploids

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Biology
The organs protected by the thoracic cage include the

None of these
Heart
Lungs
Both a & b

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Biology
Which organelles are unique to plant cells?

All of these
Cell wall
Central vacuole
Chlorophyll

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