Question

Elimination of waste from _______ occurs through a complex system of organs and specialized cells, while elimination of waste from _______ occurs within a single cell.
A.
an animal; a plant
B.
an animal; a bacterium
C.
a bacterium; an animal
D.
a bacterium; a plant

Answer 1

B

In animals (multicellular), wastes are removed by organ systems and specialized cells (e.g., kidneys, lungs, liver, skin). In a bacterium (single cell), waste elimination occurs across the cell membrane by diffusion/transport.