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Biology

Biology
Number of chromosomes in Down's syndrome is

46
48
47
49

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Biology
The device to measure transpiration in plants is

Crescometer
Clinometer
Potometer
Hygrometer

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Biology
Through cell membrane ,which substances can pass more easily than others?

Cellulose soluble
Peptides soluble
Lipid soluble
Nucleic acids soluble

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Biology
Which organelles are unique to plant cells?

Central vacuole
All of these
Cell wall
Chlorophyll

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Biology
Fat is completely digested in the

Large intestine
Stomach
Mouth
Small intestine

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Biology
AIDS is caused by the Human Immunodeficiency Virus (HIV). The transmission of HIV infection generally occurs through

Shaking hand with infected person
Inhaling polluted air
Eating contaminated food and water
Transfusion of contaminated blood and blood products

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