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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
A typical chromosome has two parts a centrifuge and ________

Chromosomes
Blastomeres
Ribosomes
Centrosomes

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Biology
The nitrogen fixing bacteria present in the root nodules of leguminous plant is

Pseudomonas
Salmonella
Clostridium
Rhizobium

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Biology
The transport of organic substances in plants is through

Wood
Phloem
Fibers
Xylem

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Biology
Which of the following is true about blood plasma?

It is about 90% water
The main protein component is hemoglobin
It is a faint yellow fluid
It is the same as serum but without the clotting proteins

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Biology
Bat can fly in dark because they

Are nocturnal
Have strong wings
Produce ultrasonic wave
Have sharp eyes

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