Grade
4-6
Michael Crumpton
Bacteria and Viruses
Library Binding
(Perfection Learning Jan. 1, 2007)
Bacteria are single-celled organisms with the ability to help and harm other living things. Viruses can reproduce only in host cells, often causing infections.
- Series
- Reading Essentials in Science
- ISBN
- 0756963869 / 9780756963866
- Pages
- 40
- Weight
- 8.8 oz.
- Dimensions
- 6.9 x 0.3
in.