Question

Below is a list of functions performed by organisms. Examine the list, then answer the question that follows.
gas exchange
intake of nutrients
disposal of wastes
stimulus response
reproduction
How do these functions compare between single-celled and multi-celled organisms?
A.
Single-celled organisms can perform only some of these functions, while multi-celled organisms can perform all of these functions.
B.
Single-celled organisms must perform all of these functions with one cell, while multi-celled organisms can have specialized cells for different functions.
C.
Single-celled organisms can perform all of these functions, while multi-celled organisms can perform only some of these functions.
D.
Neither single-celled organisms nor multi-celled organisms can perform all of these necessary functions.

Answer 1

B. Single-celled organisms must perform all of these functions within one cell, while multi-celled organisms carry out the same functions but can use specialized cells, tissues and organs to divide the work.