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 Biology Questions

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Q:

Which drug is used to cure Incontinence?

A) Oxybutynin B) Ranitidine
C) Azithromycin D) Levothyroxine
 
Answer & Explanation Answer: A) Oxybutynin

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Q:

The color of human skin depends upon

A) melanin B) carotenoids
C) anthocyanins D) chlorophylls
 
Answer & Explanation Answer: A) melanin

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Q:

Which organisms can help to carry out Vermicomposting?

A) Nitrifying Bacteria B) Earthworms
C) Algae D) Fungus
 
Answer & Explanation Answer: B) Earthworms

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Q:

___________ being a higher category, is the assemblage of families which exhibit a few similar characters.

A) Order B) Species
C) Genus D) Class
 
Answer & Explanation Answer: A) Order

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Q:

In humans, the sound is produced by the ________.

A) oesophagus B) larynx
C) medulla D) epiglottis
 
Answer & Explanation Answer: B) larynx

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Q:

Which of the following is a metabolic function of skin?

A) synthesis of a vitamin D precursor B) cutaneous sensation
C) body temperature regulation D) elimination of nitrogenous wastes
 
Answer & Explanation Answer: A) synthesis of a vitamin D precursor

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Q:

The hormone that helps plants respond to drought is

A) abscisic acid B) cytokinin
C) gibberellin D) ethylene  
 
Answer & Explanation Answer: A) abscisic acid

Explanation:

During drought, plants would be in scarcity for water. For ensuring the mineral loss of water through stomata, the plant starts to produce abscisic acid.

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Q:

Epidermal cells of which part of plant often secrete a waxy water resistant layer on their outer surface

 

A) Aerial parts only B) Roots only
C) Both aerial parts and roots D) Neither aerial parts nor root
 
Answer & Explanation Answer: A) Aerial parts only

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