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 General Science Questions

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Q:

What allows a cell to respond to a hormone?

A) hormone response element B) presence of hormone receptor
C) Adrenocorticotropic D) None of the above
 
Answer & Explanation Answer: B) presence of hormone receptor

Explanation:
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Q:

Glass is made of the mixture of

A) sand and silicates B) quartz and sand
C) mica and quartz D) mica and silicates
 
Answer & Explanation Answer: A) sand and silicates

Explanation:

A glass is made of liquid sand. You can make glass by heating ordinary sand and made into a liquid and mix with silicates to form a glass.

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Q:

Which group in an ecosystem performs photosynthesis?

A) Xylotrophs B) Autotrophs
C) Monotrophs D) Heterotrophs
 
Answer & Explanation Answer: B) Autotrophs

Explanation:

In an ecosystem, Autotrophs performs photosynthesis. Autrophs are those prepare their own food.

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Q:

Which of the following is a healthy blood pressure level?

A) 120/80 mmHg B) 140/90 mmHg
C) 90/60 mmHg D) 120/140 mmHg
 
Answer & Explanation Answer: A) 120/80 mmHg

Explanation:

Healthy blood pressure ranges from 120/80 to 90/60.

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Q:

The outer protein coat of a virus is called a

A) Capsid B) Virion
C) Envelope D) None of the above
 
Answer & Explanation Answer: A) Capsid

Explanation:

The outer protein protective coat of a virus is called a Capsid.

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Q:

What natural factors contribute to global climate?

A) Forest Fires B) Solar Activity
C) Melting Permafrost D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

Global warming is the increase in the earth’s average temperature due to release of several greenhouse gases to the atmosphere by humans. Global warming is affecting many parts of the world.

 

Natural Causes include :

1. Solar Activity

2. Melting Permafrost

3. Forest Fires 

 

Human made causes include :

1. Deforestation

2. Overpopulation

3. Landfills

4. Mining

5. Fertilizer Use

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Q:

The basic structural unit of the body is the

A) Organs B) Cell
C) Nerve D) Brain
 
Answer & Explanation Answer: B) Cell

Explanation:

Cells are the the basic structural unit of the body.

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Q:

Valve between the left ventricle and Aorta?

A) Pulmonic valve B) Tricuspid valve
C) Aortic valve D) Mitral valve
 
Answer & Explanation Answer: C) Aortic valve

Explanation:

The Aortic valve - located between the left ventricle and the aorta

The Mitral valve - located between the left atrium and left ventricle

The Tricuspid valve - located between the right atrium and the right ventricle (and) 

The Pulmonary (pulmonic) valve - located between the right ventricle and the pulmonary artery.

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