The solute concentration in blood is equivalent to 0.9% NaCl. In a lab, students viewed a sample of blood with a microscope. Next, several drops of blood were added to three different solutions: 0.09% NaCl,
0.9% NaCl, and
9% NaCl.

1. In the figure below, the panel on the left shows how the RBCs appeared in the blood when viewed at 400× magnification. Label the three other panels by indicating which shows RBCs added to 0.09% NaCl, to 0.9% NaCl, and to 9% NaCl. Below the panels, indicate whether each solution is isotonic, hypertonic, or hypotonic in relation to RBCs.

Select the correct answer. which scenario describes unethical lab behavior? a. danny stores the chemicals required for his experiment in flasks and beakers. b. anna publishes the results of her experiment on the growth rate of saplings. c. jason repeatedly runs an experiment until he gets the results he desires. d. mia records her observations of an experiment precisely and accurately. resetnext

The term used to describe a disease-causing microorganism isa. virus. b. infection. c. pathogen. d. microbe. e. bacterium.

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.