Anna's teacher tells her that the paramecium is a single-celled organism, whereas the fairy shrimp is a multi-celled organism.
Which of the following is a difference between single-celled and multi-celled organisms?
A.
Multi-celled organisms are more complex than single-celled organisms.
B.
Multi-celled organisms need food to survive, but single-celled organisms do not.
C.
Single-celled organisms are more complex than multi-celled organisms.
D.
Single-celled organisms need food to survive, but multi-celled organisms do not.
