Microbes
Living things too small to see without a microscope: bacteria, viruses, fungi and parasites. Most are harmless and many are useful; only a few, called germs, make people ill. A typical adult carries roughly as many bacteria as body cells.
Depth 1 · Foundation
You can name the four main kinds of microbe, say that most are harmless, and explain how a virus differs from a bacterium.
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Foundation
You can name the four main kinds of microbe, say that most are harmless, and explain how a virus differs from a bacterium.
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