Science Pretest

Which human body system creates the force that allows the body to move?

• Muscular System

• Circulatory System

• Nervous System

• Skeletal System

A person touches a hot surface with his hand and his hand springs back. Which two systems are operating?

• Muscle System and Endocrine System

• Nervous System and Muscle System

• Nervous System and Circulatory System

• Circulatory System and Endocrine System

What are the most basic building blocks of all organisms?

• Cells

• Organs

• Tissue

• Blood

How does the respiratory system interact with the circulatory system?

• The respiratory system brings in carbon dioxide so the circulatory system can transport it throughout the body.

• The respiratory system transports oxygen to the heart for the circulatory system

• The circulatory system removes oxygen from the body to make room for carbon dioxide in the respiratory system.

• The circulatory system transports oxygen that the respiratory system brings into the body.

The body's nervous system is made up of the brain, the spinal cord, the retina, and many other nerves. The circulatory system is made up of the heart, arteries, veins, and capillaries. The nervous system tells the heart when to beat, and the circulatory system supplies nerve cells with blood. Which of the following best describes the relationship between the nervous system and the circulatory system?

• The nervous system is a subsystem of the circulatory system.

• The nervous system and the circulatory system do not affect each other.

• The circulatory system is a subsystem of the nervous system.

• The circulatory system and the nervous system depend on each other.

What is the main function of the digestive system?

• to protect the body against foreign substances, such as bacteria and viruses

• to break down food into nutrients that can be circulated throughout the body

• to exchange oxygen and carbon dioxide gases within the body

• to send signals from one part of the body to other parts of the body

Many organ systems serve to help maintain a healthy body. The excretory system is an organ system which is composed of the sweat glands, the lungs, the rectum, and the kidneys, which all function to remove waste material.

How does removing excess waste help the body to maintain overall health?

• Removing excess waste prevents people from growing too tall.

• Removing excess waste helps prevent disease and supports cell function.

• Removing excess waste helps the body increases its internal temperature

• Removing excess waste prevents the body from recycling reusable material.

Which type of cells is most responsible for relaying information to the brain about external stimuli such as heat?

• red blood cells

• muscle cells

• white blood cells

• nerve cells

The digestive system is critical to maintaining a healthy body because

• the digestive system helps make food taste better.

• the body expels all of its waste using the digestive system.

• the digestive system collects the nutrients needed by the body.

• the digestive system is the primary way the body obtains oxygen.

The muscles of the body are part of the muscular system but would not operate without the _______ system providing the impulses that cause the muscles to act.

• reproductive

• circulatory

• respiratory

• nervous