The ____________________ Were Physicists Who Carried Out Pioneering Work in Radioactivity

question 14

Short Answer

The ____________________ were physicists who carried out pioneering work in radioactivity in France in the late 1800s and early 1900s.

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Definitions:

Exoskeletons

Hard outer structures that provide support and protection to the bodies of certain organisms like insects and crustaceans.

Sphincter

A ring-like muscle that controls the passage of substances through an opening in the body, such as the anus or esophagus.

Smooth Muscle

A type of muscle tissue which is not under conscious control, found in the walls of internal organs such as the stomach and intestines.