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Biology

Biology
If CO2 concentration in the blood increases, the breathing will

Stop
Decrease
Increase
No effect

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Biology
The ability to fix atmospheric nitrogen is found in the

Some blue-green algae
Leaves of some crop plants
Cholrella
Some marine red algae

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Biology
The sea horse belongs to the class of

Fishes
Mollusc
Mammals
Reptiles

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Biology
Organisms need Nutrients in order to

Recycling
Breaking down food
Utilize chemical compounds
None

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Biology
Bones join with muscles with the help of

Cartilage
Tendon
Small muscles
Ligament

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Biology
Photosynthesis takes place faster in

darkness
yellow light
white light
red light

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