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 Biology Questions

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Q:

What type of a body plan does coelenterates, ctenophores and echinoderms have?

A) Annelida B) Radial
C) Bilateral D) Platyhelminthes
 
Answer & Explanation Answer: B) Radial

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Q:

The saliva in human beings contains which enzyme?

A) Pepsin B) Salivary Amylase  
C) Rennin D) Trypsin
 
Answer & Explanation Answer: B) Salivary Amylase  

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Q:

What is the name of the hormone produced by thymus gland?

A) Thyroxine B) Auxins
C) Cytokinins D) Thymosin
 
Answer & Explanation Answer: D) Thymosin

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Q:

Through photosynthesis at least a half of the total carbon dioxide fixation on earth is carried out by?

A) Pteridophytes B) Bryophytes
C) Algae D) Gymnosperms
 
Answer & Explanation Answer: C) Algae

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Q:

Which lobe of human brain is associated with hearing?

A) Frontal lobe B) Parietal lobe
C) Temporal lobe D) Occipital lobe
 
Answer & Explanation Answer: C) Temporal lobe

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Q:

What distinguishes Atherosclerosis from Arteriosclerosis?

Answer

The condition of blockage of the artery due to plaque deposition in the walls which can lead to stroke or heart attack is called Atherosclerosis.


Whereas,


The condition in which the stiffening or hardening of the arteries is called as Arteriosclerosis.

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Q:

Sexual reproduction in Algae that takes place through fusion of two dissimilar size gametes is called?

A) Zoospores B) Anisogamous
C) Isogamous D) Oogamous
 
Answer & Explanation Answer: B) Anisogamous

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Q:

Which of the following micro-organism causes diseases like polio and chicken pox?

A) Bacteria B) Protozoa
C) Algae D) Virus
 
Answer & Explanation Answer: D) Virus

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