Which statement besisummarizes how viruses cause disease A Viruses use cell parts for nutrients
B. Viruses reproduce best in warm, moist environments
C. Viruses use living cells to make new viruses
D Viruses absorb nutrients from another organism's body

All living organisms are composed of a. only one cell. b. at least 100 cells. c. at least three cells. d. one or more cells.

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.

What is the main function of the central vacuole in a plant cell? a. absorbs energy from the sun to produce food b. holds water and maintains turgor pressure c. breaks down molecules to release energy d. contains the cell's genetic material