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Biology

Biology
The device to measure transpiration in plants is

Hygrometer
Clinometer
Potometer
Crescometer

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Biology
The plasma of the blood contains which among the following constituents?I. ProteinsII. SaltsIII. Hormones

Only I and II
All I, II and III
Only I and III
Only II and III

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Biology
All of the following are true of neurons except that

They are a very specialized form of connective tissue
Thay are separated from one another by synapses
When mature, they lose ability to divide
They conduct a nervous impulse

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Biology
O2 released in the process of photosynthesis comes from

CO2
water
sugar
pyruvic acid

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Biology
The interferons are

Antibiotic proteins
All of these
Antiviral proteins
Antigen proteins

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Biology
In 1610, who made microscope and used it to observe very small animals?

Laveran
Aristotle
Galilo
Robert Hooke

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