Final answer:
Exponential growth is demonstrated by the lab experiment where the number of cells triples every two hours. One example of exponential growth is seen in bacteria, where they reproduce quickly through prokaryotic fission, resulting in a doubling of their population with each reproductive generation.
Step-by-step explanation:
Exponential growth is demonstrated by the lab experiment where the number of cells triples every two hours. This type of growth occurs when a population increases at an accelerating rate over time. One example of exponential growth is seen in bacteria, where they reproduce quickly through prokaryotic fission, resulting in a doubling of their population with each reproductive generation.