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 Biology Questions

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Q:

Poison glands of snakes are homologous to

A) sebaceous glands of mammals B) salivary glands of vertebrates
C) stings of rays D) electric organs of fishes
 
Answer & Explanation Answer: B) salivary glands of vertebrates

Explanation:

Here Homologous Means having the same relation or relative position or structure. 

Here in snakes poison is in glands and here salivary glands are in Vertebrates.

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13 7331
Q:

The best eradication method for a major infestation is

A) Chemical B) Bacteria
C) Fusion D) None of the above
 
Answer & Explanation Answer: A) Chemical

Explanation:
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5 7318
Q:

Water pollution of a river is measured by_______

A) Amount of chlorine dissolve in water B) Amount of Ozone dissolve in water
C) Amount of nitrogen dissolve in water D) Amount of oxygen dissolve in water
 
Answer & Explanation Answer: D) Amount of oxygen dissolve in water

Explanation:
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Q:

Angioplasty is the most typical treatment for arteriosclerosis.

A) TRUE B) FALSE
Answer & Explanation Answer: B) FALSE

Explanation:

Angioplasty, also known as balloon angioplasty or PTA, is a minimally invasive, endovascular procedure to widen narrowed or obstructed arteries or veins, typically to treat arterial atherosclerosis.


 


Hence, the given statement that Angioplasty is the most typical treatment for arteriosclerosis is FALSE.

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Subject: Biology
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6 7265
Q:

Nitrogen fixing bacteria is useful in growing which crop ________

A) Wheat B) Paddy
C) Legume D) Maiz
 
Answer & Explanation Answer: C) Legume

Explanation:
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Q:

Phycology is the branch of botany in which we study about

A) Algae B) Fungi
C) Ecology D) Virus
 
Answer & Explanation Answer: A) Algae

Explanation:
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27 7031
Q:

Which best describes transformation in bacteria?

A) Bacteria take DNA from their environment. B) Bacteria inject DNA into another cell.
C) Bacteria lie dormant for many weeks. D) Bacteria transfer DNA with a bacteriophage.
 
Answer & Explanation Answer: A) Bacteria take DNA from their environment.

Explanation:

"Bacteria take DNA from their environment" is what best describes transformation in bacteria.

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4 6964
Q:

Blood is

A) alkaline B) neutral
C) like a buffer D) acidic
 
Answer & Explanation Answer: A) alkaline

Explanation:
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