Biology Questions

Q:

Deficiency of which of the following causes non-clotting of blood?

A) Vitamin C B) Vitamin K
C) Vitamin E D) Vitamin B12
 
Answer & Explanation Answer: B) Vitamin K

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Q:

Some roots, called _________________, arise from an organ other than the radicle.

A) tap roots B) stilt roots
C) fibrous roots D) adventitious roots
 
Answer & Explanation Answer: D) adventitious roots

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Q:

Which of the following increases the rate of heart beat?

A) Peripheral nerves B) Sympathetic nerves
C) Parasympathetic nerves D) Cranial nerves
 
Answer & Explanation Answer: B) Sympathetic nerves

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Q:

Fishes have a ........ chambered heart.

A) Single B) Three
C) Four D) Two
 
Answer & Explanation Answer: D) Two

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Q:

Which Vitamin is obtained from Sun rays?

A) Vitamin A B) Vitamin C
C) Vitamin K D) Vitamin D
 
Answer & Explanation Answer: D) Vitamin D

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Q:

In females, the ovaries are located ______ on each side of the lower abdomen.

A) One B) Two
C) Three D) Four
 
Answer & Explanation Answer: A) One

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Q:

The specificity of an antibody is due to

A) the variable portions of the H and L chains B) the L chains
C) its valence D) the H chains
 
Answer & Explanation Answer: A) the variable portions of the H and L chains

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Q:

Which one of the following forms the base of vegetable fibres?

A) Cellulose B) Proteins
C) Fats D) Oils
 
Answer & Explanation Answer: A) Cellulose

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