Researchers Have Created a Robot That Has a Very Thin

question 21

Multiple Choice

Researchers have created a robot that has a very thin leg that is moved by cardiac (heart) cells contracting in unison. The robot, made of a polymer similar to that used in making contact lenses, is bathed in heart cells with supporting cells, which then attach to the robot and provide movement as they contract.
-All of the cardiac cells working together can cause the robot leg to move in a way that individual cells could not. This is an example of

• A) adaptation.
• B) emergent properties of cells.
• C) energy flow through an ecosystem.
• D) internal environment regulation.

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Definitions:

Hydrostatic Pressure

The force caused by gravity that a stationary fluid exerts.

Capillary Bed

A network of capillaries, the smallest blood vessels, involved in the exchange of oxygen, carbon dioxide, and nutrients with tissues.

Brachial Vein

The brachial vein is a deep vein that runs up the arm and helps return deoxygenated blood from the arm to the heart.

Hydrostatic Pressure

The gravitational force influence on a fluid that is not in motion, leading to a pressure.