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Assertion : There are similarities between the locomotion of unicellular organisms and multicellular animals.
Reason : Ciliary, flagellar and amoeboid movements occur in unicellular organisms
  • a)
    If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  • b)
    If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  • c)
    If Assertion is true but Reason is false.
  • d)
    If both Assertion and Reason are false.
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Assertion : There are similarities between the locomotion of unicellul...
Assertion-Reason Question Explanation:

Assertion: There are similarities between the locomotion of unicellular organisms and multicellular animals.

Reason: Ciliary, flagellar, and amoeboid movements occur in unicellular organisms.

Explanation:

Similarities in Locomotion:
- Unicellular organisms like protists exhibit ciliary, flagellar, and amoeboid movements for locomotion.
- Multicellular animals also use similar mechanisms for movement, such as cilia in the respiratory tract, flagella in sperm cells, and amoeboid motion in immune cells.

Differences in Complexity:
- While the basic mechanisms of ciliary, flagellar, and amoeboid movements are similar in both unicellular and multicellular organisms, the complexity and coordination of these movements may vary.
- Multicellular animals often have specialized structures and tissues for locomotion that allow for more coordinated movements compared to unicellular organisms.

Reason as an Explanation:
- The reason provided correctly explains the assertion by highlighting the common modes of locomotion, such as ciliary, flagellar, and amoeboid movements, shared by both unicellular and multicellular organisms.
- These similarities in locomotion mechanisms suggest evolutionary conservation and adaptation across different types of organisms for efficient movement.
Therefore, the correct answer is option 'B' as both the assertion and reason are true, and the reason correctly explains the assertion by connecting the locomotion mechanisms in unicellular and multicellular organisms.
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Community Answer
Assertion : There are similarities between the locomotion of unicellul...
Main movement found in unicellular organisms are ciliary, flagellar and amoeboid movements. In multicellular animals also, phagocytes migrate through tissues by amoeboid movements. Ciliary movement of cells lining the upper respiratory tract, fallopian tubes and vasa efferentia of testes transport, respectively dust particles, ova and sperms in specific direction in those organs. Mammalian sperms move into the female reproductive tract by flagellar movements.
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Assertion : There are similarities between the locomotion of unicellular organisms and multicellular animals.Reason : Ciliary, flagellar and amoeboid movements occur in unicellular organismsa)If both Assertion and Reason are true and Reason is the correct explanation of Assertion.b)If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.c)If Assertion is true but Reason is false.d)If both Assertion and Reason are false.Correct answer is option 'B'. Can you explain this answer?
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