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Q:

The thymus gland produces a hormone called

A) thyroxine B) thymosin
C) thyronine D) calcitonin
 
Answer & Explanation Answer: B) thymosin

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Q:

Which of the following reproduce both, sexually as well as asexually?

A) Hydra B) Amoeba
C) ALgae D) Fungi
 
Answer & Explanation Answer: A) Hydra

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Q:

Lungs are the primary organs of _________.

A) Digestion B) Constipation
C) Perspiration D) Respiration
 
Answer & Explanation Answer: D) Respiration

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Q:

What is regulated by the sphincter muscle in the stomach?

A) Exit of the food from the stomach   B) Entry of food in the stomach  
C) Mixing of food in the stomach   D) Exit of food from the large intestine
 
Answer & Explanation Answer: A) Exit of the food from the stomach  

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Q:

______ is a strong drug that doctors give to people to make them calm or help them sleep.

A) Barbiturate B) Antidepressant
C) Antihistamine D) Beta-Blocker
 
Answer & Explanation Answer: A) Barbiturate

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Q:

CuO + H2 ---> Cu + H2O. This equation is an example of

A) Oxidation B) Decomposition
C) Reduction D) Redox
 
Answer & Explanation Answer: D) Redox

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Q:

There are 15 protons and 22 neutrons in the nucleus of an element. What is its mass number?

A) 22 B) 7
C) 37 D) 15
 
Answer & Explanation Answer: C) 37

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Q:

How many groups and periods are present in the Modern Periodic Table?

A) 9 groups, 9 periods B) 7 groups, 8 periods
C) 18 groups, 7 periods D) 8 groups, 7 periods
 
Answer & Explanation Answer: C) 18 groups, 7 periods

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