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 Biology Questions

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Q:

Which component in tobacco makes it harmful for human consumption?

A) Morphine B) Nicotine
C) Heroin D) None of these
 
Answer & Explanation Answer: B) Nicotine

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Q:

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

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

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Q:

Which one of the following tissues is responsible for increase of girth in the stem of a plant?

A) Tracheid B) Pericycle
C) Intercalary meristem D) Lateral meristem
 
Answer & Explanation Answer: D) Lateral meristem

Explanation:

In vascular plants, the lateral meristem is one of two meristems in which growth occurs in order to increase stem girth. A meristem is the region of plant tissue found on the tips of roots and shoots. It is where cell division occurs to produce new growth.

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Q:

A protruding part of the throat that is responsible for growing voice box in boys is called

A) Larynx B) Testosterone
C) Pharynx D) Adam's Apple
 
Answer & Explanation Answer: D) Adam's Apple

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Q:

Which one of the following forms the base of vegetable fibres?

A) Cellulose B) Proteins
C) Fats D) Oils
 
Answer & Explanation Answer: A) Cellulose

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Q:

Deficiency of which of the following causes non-clotting of blood?

A) Vitamin C B) Vitamin K
C) Vitamin E D) Vitamin B12
 
Answer & Explanation Answer: B) Vitamin K

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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:

Which cells in pancreas produce Insulin ?

A) Thymus B) Estrogen
C) Corpus epididymis D) Islets of Langerhans
 
Answer & Explanation Answer: D) Islets of Langerhans

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