Biology Questions

Q:

Which among the following have a perfect pair of sex chromosomes?

A) Only men B) Only women
C) Both men and women D) Neither men nor women
 
Answer & Explanation Answer: B) Only women

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Q:

The shape of the outer part of the ear is like a __________.

A) funnel B) plate
C) drum D) disc
 
Answer & Explanation Answer: A) funnel

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Q:

Which of the following is not among the 3 main classes of Algae?

A) Chlorophyceae B) Rhodophyceae
C) Phaeophyceae D) Gymnosperms
 
Answer & Explanation Answer: D) Gymnosperms

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Q:

Which of the following is not a plant hormone?

A) Gibberellic B) Auxins
C) Cytokinins D) Thyroxin
 
Answer & Explanation Answer: D) Thyroxin

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Q:

The smallest blood vessels which are one-cell thick, are called ______

A) vena cava B) arteries
C) veins D) capillaries
 
Answer & Explanation Answer: D) capillaries

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Q:

The amount of blood filtered together by both the kidneys in a 70 kg adult male human in a minute is

A) 1100 ml B) 100 ml
C) 1500 ml D) 500 ml
 
Answer & Explanation Answer: A) 1100 ml

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Q:

A human body works within the pH range of

A) 6.0 to 7.0 B) 6.0 to 6.8
C) 7.0 to 8.6 D) 7.0 to 7.8
 
Answer & Explanation Answer: D) 7.0 to 7.8

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Q:

A healthy adult man has, on an average, ________ (in millions) of RBCs mm-3 of blood.

A) 5 - 5.5 B) 4 - 4.5
C) 3 - 3.5 D) 6 - 6.5
 
Answer & Explanation Answer: A) 5 - 5.5

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