Online Test

Question # 1

................. in blood stream plays an important role in blood clotting.

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Calcium

Phosphorus

Nitrogen

Potassium

Science is based on ____________

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Obsrvation

Theory

Hypothesis

Law

A scientific law is an irrefutable:

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Observation

Theory

Principle

None of these

Which of the followings is the symptom of malaria?

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Chills

Fevers

Recurring attacks

All

The wavelike movement of muscle that pushes food through the digestive system is called:

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Chemical digestion

Emulsification

Absorption

Paristalsis

The tentative explanation of the observation is called

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Problem

Hypothesis

Deduction

Result

Which one of the following stages of cell division is very different for animal and plant cells?

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Prophase

Metaphase

Anaphase

Cytokinesis

How much nitrogen is present in making body mass of a living organisms?

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10%

3%

1%

18%

Golgi bodies consist of stacks of flattened sacs made up of membranes called ................ .

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Cristae

Cistae

Cisternae

All

_______________ is the process i which molecules moves from region of higher concentration to region of lower concentration.

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Diffusion

Osmiss

Active transport

Passive transport

Function of cell wall is:

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Cell wall

Plasma membrane

Both

None

Find the correct path of blood circulation.

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Left atrium, left ventricle, lungs, right atrium, right ventricle, body

Right atrium, right ventricle, lungs, left atrium, left ventricle ,body

Left atrium, left ventricle, right atrium, right ventricle, lungs body

Right atrium, lungs, right ventricle, left atrium, body , left ventricle

Different populations of the same area constitute to form _.

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Species

Same specie

Popolation

Community

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