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 Biology Questions

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Q:

What process never occurs in interphase?

Answer

Absence of cell division is the process that never comes in interphase.

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Q:

Chemical Co- ordination in the body is brought out by

A) Blood B) Lymph
C) Enzymes D) Hormones
 
Answer & Explanation Answer: D) Hormones

Explanation:
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Q:

Genes are situated on _________

A) Chromosome B) Mitochondria
C) Plastids D) Ribosomes
 
Answer & Explanation Answer: A) Chromosome

Explanation:
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Q:

The insects do not have blood pigments because 

A) there is no blood B) blood does not have a respirratory function
C) tissues have pigments D) pigments are elsewhere
 
Answer & Explanation Answer: B) blood does not have a respirratory function

Explanation:

The blood of some invertebrate animals like the earthworm is red due to haemoglobin pigment, but the pigment is dissolved in the plasma. In vertebrates the same pigment is found in the red corpuscles and not in the plasma.

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Q:

Branch of biology in which we study about relationship between living and their environment

A) Physiology B) Genetics
C) Ecology D) Geology
 
Answer & Explanation Answer: C) Ecology

Explanation:
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Q:

In which organ RBC are selectively destroyed/recycled by macrophages?

A) Kidney B) Pancreas
C) Spleen D) Liver
 
Answer & Explanation Answer: C) Spleen

Explanation:

Spleen is called as the graveyard of RBC Red Blood Cells where they are selectively destroyed/recycled by macrophages.

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Q:

Which of the following is not a function of saliva?

A) contains fluoride to harden the tooth enamel B) moistens food and helps stick it together to make it easier to swallow
C) begins the chemical breakdown of starches D) helps clean the mouth
 
Answer & Explanation Answer: A) contains fluoride to harden the tooth enamel

Explanation:

Saliva is produced by the salivary gland which helps in food digestion.

 

Option A) contains fluoride to harden the tooth enamel is not the function of saliva.

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Q:

The functional unit of the nervous system is the

A) Nephrons B) Axons
C) Neurons D) All of the above
 
Answer & Explanation Answer: C) Neurons

Explanation:

Neurons are the functional units of the nervous system in the body.

the_functional_unit_of_the_nervous_system_is_the1535026518.png image

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