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Biology

Biology
Main nitrogenous product formed in man

Ammonium nitrate
Ammonia
Urea
Uric acid

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Biology
Octopus is

An arthropod
A hemichordate
An echionoderm
A molluscs

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Biology
PH of human blood is

7.5 - 8.0
9
7.4
6.2

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Biology
The scientific study of how organisms interact with their environment is called

Zoology
Ecology
Evolution
None of these

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Biology
The movement of materials across the cell membrane with the help of biological energy provided by ATP is called

Fractionation
Active Transport
Passive Transport
Endocytosis

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Biology
Alveoli is related to which of the following system of human body?

Reproductive system
Excretory system
Circulatory system
Respiratory system

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