Question

Read the assertion and reason carefully to mark the correct option in question

Assertion: The number of cells in a multicellular organism is inversely proportional to size of body.

Reason: All cells of biological world are alive.

• A. If assertion is true but reason is false.
• B. If both assertion and reason are true but the reason is not the correct explanation of the assertion.
• C. If both assertion and reason are false.
• D. If both assertion and reason are true and the reason is the correct explanation of the assertion.

Answer 1

The correct option is C If both assertion and reason are false.

Elaboration:

If the number of cells and body size are inversely proportional, then an adult organism (eg: adult human) should have fewer cells when compared to the younger version of that organism (eg: human baby). But this isn't the case. Thus, assertion is false

All cells in the biological world are not alive. For example: cells of sclerenchyma tissue, found in plants, are composed of dead cells. Thus, reason is false.

Final answer: (D) If both assertion and reason are false