Question

when bacteria, viruses, and other germs are present in the body, lymph nodes produce more cells to prevent the invaders from spreading through the body. this is an example of which type of cellular alteration?
hyperplasia
hypertrophy
metaplasia
atrophy

Explanation:

Hyperplasia is an increase in the number of cells in an organ or tissue. In this case, lymph nodes produce more cells (increase in cell number) in response to bacteria, viruses, etc. to prevent invaders from spreading. Hypertrophy is an increase in cell size. Metaplasia is a change in cell type. Atrophy is a decrease in cell size/number (wasting away). So the described situation fits hyperplasia.

Answer:

Hyperplasia