Biology Questions

Q:

Which of the following classes of animals has/have three-chambered heart?

A) Pisces and Amphibia B) Amphibia and Reptilia
C) Reptilia only D) Amphibia only
 
Answer & Explanation Answer: B) Amphibia and Reptilia

Explanation:

Mammalian and avian hearts have four chambers two atria and two ventricles.Amphibians and reptiles, by contrast, have a three-chambered heart. The three-chambered heart consists of two atria and one ventricle.Fish possess the simplest type of true heart a two-chambered organ composed of one atrium and one ventricle.

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Q:

All of the following are fat-soluble vitamins except

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

Explanation:

Fat-soluble vitamins except are the vitamins that are not soluble in water and are only absorbed when taken with higher fat food.

There are 4 types of fat soluble vitamins. They are :

  • Vitamin A
  • Vitamin D
  • Vitamin E
  • Vitamin K

 

Water soluble vitamins are Vitamin B and Vitamin C.

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1 1811
Q:

The alimentary canal is a long tube that extends from ______.

A) mouth to stomach B) stomach to large intestine
C) small intestine to anus D) mouth to anus
 
Answer & Explanation Answer: D) mouth to anus

Explanation:
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Q:

Which category of compound is most concentrated energy source?

A) Fats B) Starch
C) Proteins D) Vitamins
 
Answer & Explanation Answer: A) Fats

Explanation:
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1 1803
Q:

Which among the following is used to treat Indigestion?

A) Antacid B) Antiseptic
C) Analgesic D) Antibiotic
 
Answer & Explanation Answer: A) Antacid

Explanation:
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Q:

Which of the following bacteria is responsible for the formation of curd?

A) Lycopodium B) Yeast
C) Lacto-bacillus D) Fungus
 
Answer & Explanation Answer: C) Lacto-bacillus

Explanation:
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Q:

Which of the following is not true about Angiosperms?

A) Dominant phase is gametophytes B) Vascular bundles are present
C) Spores are heterospores D) Seeds are covered
 
Answer & Explanation Answer: A) Dominant phase is gametophytes

Explanation:
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Q:

Which among the following is also called as 'power house of the cell'?

A) Plastids B) Mitochondria
C) Golgi bodies D) Cell wall
 
Answer & Explanation Answer: B) Mitochondria

Explanation:
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