Investigating Simple Organisms: Life Science
Lisa Zamosky
For many centuries, scientists believed there were only two kingdoms, or groups of living things: plants and animals. But Anton van Leeuwenhoek made microscopes in the 17th century that also proved there are microorganisms, or microbes. Microbes can help keep people stay healthy, but some also can make people sick.
Anno:
2008
Edizione:
Ill
Casa editrice:
Teacher Created Materials
Lingua:
english
Pagine:
32
ISBN 10:
1433391163
ISBN 13:
9781433391163
Collana:
Science Readers
File:
PDF, 5.81 MB
IPFS:
,
english, 2008
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