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 Biology Questions

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Q:

Match the following.

 

 

A) I – 2, II – 3, III – 1   B) I – 1, II – 3, III – 2  
C) I – 2, II – 1, III – 3   D) I – 3, II – 2, III – 1
 
Answer & Explanation Answer: D) I – 3, II – 2, III – 1

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Q:

Silviculture is the branch of botany in which we study about

A) Culture of algae B) Development of forest
C) Culture of fungi D) Silciphida plant
 
Answer & Explanation Answer: B) Development of forest

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77 11745
Q:

Which of the following is a mixed gland

A) Pituitary B) Adrenal
C) Pancreas D) Ovary
 
Answer & Explanation Answer: C) Pancreas

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Q:

The rate of heartbeat is accelerated by the hormone 

A) adrenaline B) acetylcholine
C) thyroxine D) pituitrin
 
Answer & Explanation Answer: A) adrenaline

Explanation:

The hormone adrenaline also called epinephrine is known as a stress hormone. In emotional upsets( like fear, anger etc.) this hormone is poured into the blood and it accelerates heart beat. The hormone acetylcholine decelerates heartbeat rate.

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Q:

In which of the following part of Neuron the information is transmitted in the chemical form?

 

A) Dendrite B) Cell body
C) Axon D) No option is correct
 
Answer & Explanation Answer: D) No option is correct

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Q:

Blood is a connective tissue embedded in which type of intercellular matrix?

 

A) Jelly like B) Fluid
C) Dense D) No option is correct
 
Answer & Explanation Answer: B) Fluid

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Q:

Total salt content in blood is about

A) 1.85 to 1.9% B) 11.85 to 11.9%
C) 2.85 to 2.9% D) 0.85 to 0.9%
 
Answer & Explanation Answer: D) 0.85 to 0.9%

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Q:

Which one of the following vitamins is known as the anti sterile factor  ?

A) Ascorbic acid B) Riboflavin
C) Niacin D) Retinol
 
Answer & Explanation Answer: B) Riboflavin

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