Explain why the heart can be considered the muscle with the greatest elastic strength

After reading the paragraph below, answer the questions that follow. 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. emergent properties of cells. b. energy flow through an ecosystem. c. adaptation. d. internal environment regulation.

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays