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 General Science Questions

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Q:

Igneous rocks are classified based upon their

A) composition B) texture
C) Both A & B D) None of the above
 
Answer & Explanation Answer: C) Both A & B

Explanation:
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Q:

The plants which flower only once in their lifetime are called

A) Monocots B) Monocarpic
C) Monogenic D) Monogamous
 
Answer & Explanation Answer: B) Monocarpic

Explanation:

The plants which flower only once in their lifetime are called Monocarpic Plants.

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Q:

Is cholesterol Hydrophobic or Hydrophilic?

A) Hydrophobic B) Hydrophilic
C) Both A & B D) None of the above
 
Answer & Explanation Answer: C) Both A & B

Explanation:

Cholesterol is referred as an amphipathic molecule, that it contains its hydrophilic and hydrophobic parts.

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Q:

Microorganisms that cause disease are called

A) Pathogens B) Microbes
C) Infectees D) None of the above
 
Answer & Explanation Answer: A) Pathogens

Explanation:
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Q:

For a thirsty person, drinking water serves to reduce

A) an instinct B) the set point
C) basal metabolic rate D) a drive
 
Answer & Explanation Answer: D) a drive

Explanation:

For a thirsty person, drinking water serves to reduce a drive.

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Q:

Which of these is an example of negative feedback?

A) After you eat, insulin stimulates the lowering of blood sugar levels. B) Once labor begins, contractions increase in frequency and intensity.
C) After you eat, glucagon stimulates an increase in blood sugar levels. D) As a blood clot begins to form, the process of its formation gets faster and faster.
 
Answer & Explanation Answer: A) After you eat, insulin stimulates the lowering of blood sugar levels.

Explanation:

Eating raises blood sugar levels, insulin stimulates the lowering of blood sugar level. In this example the response to the stimulus (increased blood sugar levels) opposes that stimulus (by lowering blood sugar levels).

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Q:

What gas makes up most of the atmosphere?

A) Oxygen B) Helium
C) Nitrogen D) Carbondioxide
 
Answer & Explanation Answer: C) Nitrogen

Explanation:

Our atmosphere is made up of

78% Nitrogen,

21% Oxygen and

1% all other gases like argon, carbon dioxide, neon, and helium.

 

So, Nitrogen makes up the majority of our atmosphere.

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Q:

Plants wilt due to excess of

A) Photosynthesis B) Absorption
C) Transpiration D) None of the above
 
Answer & Explanation Answer: C) Transpiration

Explanation:

Plants wilt due to excess of Transpiration.

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