Which describes how radiation moves? o Radiation moves from a cooler object to a warmer object
o Radiation moves from a warmer object to a cooler object
o Radiation moves from a warm object to an object of the same temperature
o Radiation moves from a cool object to an object of the same temperature

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.

Plsss > .< compare and contrast the characteristics of flatworms rounds worms and earthworms

Identify two examples of chemical reactions that you have encountered during the last week. identify an exothermic and endothermic reaction. explain.