Biology Practice Question and Answer

Q:

Sponges belong to phylum ______ of the animal kingdom.

431 0

  • 1
    Echinodermata
    Correct
    Wrong
  • 2
    Porifera
    Correct
    Wrong
  • 3
    Aschelminthes
    Correct
    Wrong
  • 4
    Mollusca
    Correct
    Wrong
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Answer : 2. "Porifera"
Explanation :

1. Sponge belongs to Porifera phylum of the animal kingdom.

2. These are primitive multicellular animals. The study of sponges is known as para zoology.

3. Sponges are mostly irregular in shape and have radial symmetry.

4. The body of a sponge has two layers-

- Epidermis: This is the outer layer that helps move water in and out.

- Mesohyl: This is the middle layer which contains the cells of the sponge.

Q:

What does our digestive system consist of?

426 0

  • 1
    Alimentary canal and associated glands
    Correct
    Wrong
  • 2
    Digestive glands only
    Correct
    Wrong
  • 3
    Digestive glands only
    Correct
    Wrong
  • 4
    Mucous glands
    Correct
    Wrong
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Answer : 1. "Alimentary canal and associated glands"

Q:

How many teeth in man come out twice?

426 0

  • 1
    4
    Correct
    Wrong
  • 2
    12
    Correct
    Wrong
  • 3
    20
    Correct
    Wrong
  • 4
    28
    Correct
    Wrong
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Answer : 3. "20"

Q:

Which one of the following is the process involved in photosynthesis? 

425 0

  • 1
    Food is oxidized to release carbon dioxide and water
    Correct
    Wrong
  • 2
    Oxygen is taken, and carbon dioxide and water vapor are given out
    Correct
    Wrong
  • 3
    Potential energy is released to form free energy
    Correct
    Wrong
  • 4
    Free energy is converted into potential energy and stored
    Correct
    Wrong
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Answer : 4. "Free energy is converted into potential energy and stored "

Q:

Which of the following is incorrect regarding the shapes of the three portions of the small intestine?

424 0

  • 1
    Duodenum-C shape
    Correct
    Wrong
  • 2
    Duodenum-J shape
    Correct
    Wrong
  • 3
    Ileum-highly coiled
    Correct
    Wrong
  • 4
    jejunum-long coiled
    Correct
    Wrong
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Answer : 2. "Duodenum-J shape"

Q:

Which of the following is true about

Atrial Natriuretic Factor :

1) Peptide hormone 2) Increases blood pressure 3) Reduces blood pressure 4) Vaso constrictor 5) Cause vasodialation

424 0

  • 1
    1, 2 and 4 are true
    Correct
    Wrong
  • 2
    1,3 and 5 are true
    Correct
    Wrong
  • 3
    2 and 4 are true
    Correct
    Wrong
  • 4
    5 only is true
    Correct
    Wrong
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Answer : 2. "1,3 and 5 are true "

Q:

The skull bones are immovable because of the presence of highly tensile:

423 0

  • 1
    Aerolar tissue
    Correct
    Wrong
  • 2
    Tendon
    Correct
    Wrong
  • 3
    Cartilage
    Correct
    Wrong
  • 4
    White fibrous tissue
    Correct
    Wrong
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Answer : 4. "White fibrous tissue"

Q:

Epiglottis is made up of which of the following tissues?

418 0

  • 1
    Ligament
    Correct
    Wrong
  • 2
    Tendon
    Correct
    Wrong
  • 3
    Cartilage
    Correct
    Wrong
  • 4
    Bone
    Correct
    Wrong
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Answer : 3. "Cartilage "

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