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.
-The robot's cardiac cells, working together in synchrony, could be considered at what level in life's hierarchy of organization?

Question

Quizplus · Accepted Answer

The cardiac cells in the robot are working together to provide movement, but they are not functioning as a complete organism or organ system. They also do not make up an organelle within a cell. Therefore, the best choice is C) tissue.

Researchers Have Created a Robot That Has a Very Thin