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basic intro vocabulary


The smallest unit of an organism that can carry out the basic functions of life


A group of similar cells that work together to carry out a specific function.


A group of different tissues that work together to perform a specific function.

body system

A group of organs that work together to perform a specific function.


A complete living thing.


Regular muscular contractions that move food through the digestive tract.


A thick, sticky substance that lines and protects the inner walls of the digestive organs. Facilitates the passage of food through the digestive tract and helps protect the walls of the digestive tract from being digested.


A ring of muscle that aids in the one-way passage of food through the digestive tract.

Benedict's solution

A chemical indicator that, when added to a solution and heated, changes from blue to light green to red in the presence of increasing concentrations of sugar.

Lugol solution

A yellow-brown indicator that turns blue-black when it comes into contact with starch.


one of the three basic food types. May be in the form of starch, sugar, or fiber. Found in cereals, breads, and vegetables.

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