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Vocabulary

A-Level Biology

CIE

class 8

Last updated 1:52 PM on 6/10/25

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What are pathogens?

Microorganisms that cause diseases.

2

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What is a communicable disease?

A disease that can spread from one person to another.

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What are carriers/vectors?

Organisms that carry pathogens and transmit them to other living beings.

4

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What is pasteurization?

The process of preserving food by using heat to kill microorganisms and then sealing it in airtight containers.