Some single-celled organisms live inside other cells, lack many of the organelles that most eukaryotes have, and have a relatively small number of genes in their genomes. Which of the following is TRUE of these single-celled organisms?

Question

Quizplus · Accepted Answer

Single-celled organisms that live inside other cells, such as viruses and some bacteria, have a streamlined simplicity because they rely on the host cell for many functions. They do not need to have all the organelles and genes necessary for independent survival.

Some Single-Celled Organisms Live Inside Other Cells, Lack Many of the Organelles