Questions

Q:

Male mosquitoes take their food from

A) human blood B) standing water
C) sap of plants D) dung and debris
 
Answer & Explanation Answer: C) sap of plants

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Filed Under: Animals and Birds
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Q:

Ethylene is a ______ molecule.

A) polar B) ionic
C) covalent D) nonpolar
 
Answer & Explanation Answer: D) nonpolar

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Filed Under: Biology
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Q:

In animals like Annelids, Molluscs, organs have associated to form functional systems, each system concerned with a specific physiological function. This pattern is called ________ system level of organization.

A) organ B) open
C) closed D) coelom
 
Answer & Explanation Answer: A) organ

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Filed Under: Biology
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Q:

What is commonly known as 'white plague'?

A) Typhoid B) Malaria
C) Tuberculosis D) Plague
 
Answer & Explanation Answer: C) Tuberculosis

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Filed Under: Biology
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Q:

Strait of Gibraltar connects which of the following?

A) Red Sea ­ Mediterranean Sea B) Red Sea ­ Arabian Sea
C) Atlantic Ocean ­ Mediterranean Sea D) Mediterranean Sea ­ Black Sea
 
Answer & Explanation Answer: C) Atlantic Ocean ­ Mediterranean Sea

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Filed Under: Indian Geography
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Q:

The   chemical   properties   of   an   element depend upon

A) the number of isotopes of the element B) the mass number of the element
C) the  total  number  of  neutrons  in  the element D) the    number    of    electrons    in    the outermost shell of the element
 
Answer & Explanation Answer: D) the    number    of    electrons    in    the outermost shell of the element

Explanation:

Chemical  properties of  an element depend   on the number   and   the configuration   of   their   (valence) electrons.

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Filed Under: Chemistry
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Q:

What is the pH of water?

A) 7 B) 5
C) 3 D) 1
 
Answer & Explanation Answer: A) 7

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Filed Under: Chemistry
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Q:

 Each trait in the child can be influenced by ______ DNA.

A) only paternal B) only maternal
C) both paternal and maternal D) neither paternal nor maternal
 
Answer & Explanation Answer: C) both paternal and maternal

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Filed Under: Biology
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