Muddy water contains microorganisms, clay, and silt. Which of the following statements suggests that muddy water is a suspension?

A.
It is a heterogenous mixture and particles settle down if left undisturbed.
B.
It is a heterogenous mixture and particles do not settle down.
C.
It is a homogenous mixture and particles settle down if left undisturbed.

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.

How do accessory pigments chlorophyll?

Which of the following is an effect of the uneven heating of the earth by the sun? a sea breeze a land breeze a convection current all of the above