Body Systems Review

Which is a characteristic of most single-celled organisms?

• They have a complex nervous system.

• They contain several different types of cells.

• They perform all life processes.

• They have a circulatory and a respiratory system.

Which statement best describes how a multicellular organism survives?

• Every cell carries out the same functions for the survival of the organism.

• The cells all have the same structures that allow the organism to survive.

• All life processes are performed by each cell for the survival of the organism.

• The cells have different functions, and together they are essential for the survival of the organism.

Which statement best explains how a bacterial cell is capable of surviving as a single-celled organism?

• It is able to create new cells more slowly than other kinds of cells.

• It is large enough to capture the food it needs for growth.

• It is so small, it can survive in almost any place.

• It has the ability to carry out all of its life functions.

Multicellular Organisms

• Made of 1 cell
• Made of more than 1 cell

How many chambers of the heart are there?

• 25

• 4

• 2

• 3

Arteries

• carry oxygenated blood to the heart

• carry oxygenated blood away from the heart

• carry deoxygenated blood to the heart

• carry deoxygenated blood away from the heart

Veins

• carry deoxygenated blood to the heart

• carry deoxygenated blood away from the heart

• carry oxygenated blood to the heart

• carry oxygenated blood away from the heart

The amount of blood pumped from the heart in one beat is

• stroke volume

• cardiac output

• resting heart rate

• maximum heart rate

As the blood reaches the lungs, what is removed from the blood?

• oxygen

• carbon dioxide

• red blood cells

• white blood cells

The main function of the circulatory system is 

• To give the body structure and support
• Excrete waste
• transport blood, nutrients, and gases throughout the body
• to transport messages from the body to the brain