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2.1: Cell Biology

Difficulty Level: At Grade Created by: CK-12
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Vocabulary

cell

Basic unit of structure and function of a living organism; the basic unit of life.

cell theory

Scientific theory that all living things are made up of cells, all life functions occur within cells, and all cells come from already existing cells.

electron microscope

Microscope that uses a beam of electrons to magnify an object.

microscope

An instrument that uses lenses to produce magnified images of small objects.

organ

Tissues that work together to perform a specialized function.

organ system

Organs that work together to perform a certain function.

tissue

Groups of cells that work together to perform a specific function.

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Difficulty Level:
At Grade
Grades:
7 , 8
Date Created:
Nov 29, 2012
Last Modified:
Nov 28, 2016
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