Question

Assertion (A): Organism uses up to 90% of its food energy for its life processes.
Reason (R): 10% of energy goes into new body cells and will be available to the next animal when it gets eaten.

• A. Both A and R are true and R is the correct explanation of A.
• B. Both A and R are true but R is NOT the correct explanation of A.
• C. A is true but R is false.
• D. Both A and R are false.

Answer 1

The correct option is A

Both A and R are true and R is the correct explanation of A.

Energy flow:

• Organism uses up to 90% of its food energy for its life processes.
• Only about 10% of energy goes into new body cells and will be available to the next animal when it gets eaten.
• This loss of energy at each trophic level can be shown by an energy pyramid.