In the leveled reader Protozoa , fundamental science concepts of biology are explained through simply written text and colorful, fun illustrations.
Young readers discover that protozoa are organisms too small to be seen with only the eyes.
Protozoa were discovered by Anton van Leeuwenhoek when he looked at pond water with a microscope, a tool that makes tiny things look bigger.
There are thousands of protozoa of different shapes and sizes that live i.