Q1. [1] straightforward initial-understanding
Assertion (A): In complex multicellular organisms, a transport system is essential for life.
Reason (R): Simple diffusion is insufficient to deliver nutrients and oxygen to all cells when body size is large.
Choose the correct option:
(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) A is false but R is true.
- 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 A is false but R is true.