Biology Questions

Q:

Which of the following is a characteristic of all angiosperms?

A) double internal fertilization B) ovules that are not contained within ovaries
C) complete reliance on wind as the pollinating agent D) free-living gametophytes
 
Answer & Explanation Answer: A) double internal fertilization

Explanation:

The flowering plants, also known as angiosperms, Angiospermae or Magnoliophyta, are the most diverse group of land plants. These are also seed producing plants like gymnosperms. In Angiosperms seeds are in flowers.

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Q:

Which among the following is not a connective tissue?

A) Blood B) Bone
C) Skin D) Cartilage
 
Answer & Explanation Answer: C) Skin

Explanation:
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Q:

Anaemia is caused because of deficiency of which of the following?

A) Cobalt B) Iron
C) Sodium D) Calcium
 
Answer & Explanation Answer: B) Iron

Explanation:
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Q:

Which of the following is responsible for giving colour to human skin?

A) Luciferin B) Haemoglobin
C) Flavonoids D) Melanin
 
Answer & Explanation Answer: D) Melanin

Explanation:
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Q:

Night Blindness is caused by deficiency of which of the following Vitamin?

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

Explanation:
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Q:

With which of the following body organ is 'pace-maker' associated?

A) Liver B) Brain
C) Heart D) Lungs
 
Answer & Explanation Answer: B) Brain

Explanation:
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Q:

A few organisms can tolerate and thrive in a narrow range of temperatures. Such organisms are called ___________.

A) Osmotic B) Eurythermal
C) Stenothermal D) Hydrothermal
 
Answer & Explanation Answer: C) Stenothermal

Explanation:
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Q:

The exit of food from the stomach is regulated by a ______ muscle.

A) cardiac B) sphincter
C) skeletal D) No option is correct
 
Answer & Explanation Answer: B) sphincter

Explanation:
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