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Biology

Biology
The enzyme found in saliva

Resin
Ptylin
Tenin
Renine

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Biology
Which of the following is an example of parasitism?

Leeches consume blood of their host
Ticks that live on dogs
Aphid insects eat the sap of the host plant
All of these

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Biology
The unicellular algae used to supply and regulate the oxygen in space programmes is

Chlorella
Ulothrix
Odogonium
Spyrogyra

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Biology
Which cell feature is responsible for storing water ?

Mitochondria
Vacuole
Lysosome
Non of the above

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Biology
Antigen is a substance which

Is used as an antidote to poison
Lowers body temperature
Triggers the immune system
Destroys harmful bacteria

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Biology
Function of hemoglobin is

Destruction of bacteria
None of these
To transport oxygen
To check the loss of blood

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