The circulatory system delivers oxygen, and nutrients from cells and removes their waste.

• True

• False

What is the primary function of this body system?

• The protection of vital organs from injury

• The transport of nutrients, water, and oxygen to body cells.

• Provide support and structure to the skeletal system

• The production of hormones.

What is the main organ of the circulatory system?

• Heart

• Lungs

• Brain

• Stomach

The respiratory and circulatory system both move oxygen. Which of the following BEST explains why there are two human systems to move oxygen through the body.

• One moves oxygen into the body, and the other moves through the body.

• One moves oxygen while running, and the other move while walking.

• One moves oxygen while awake, and the other moves oxygen when asleep.

• One moves while reading, and the other while studying.

What is the order of levels of organization of the body from SMALLEST to Largest

• organism, organ system, organ, tissue, cell

• cell, organ, tissue, organ system, organism

• cell, organ, tissue, organ system, organism

• cell, tissue, organ, organ systems, organism

The stomach is an example of an:

• Organ

• Organ system

• Organism

• tissue

Tags

NGSS.MS-LS1-3

The stomach is part of which larger system?

• nervous

• endocrine

• circulatory

• digestive

Which answer choice describes only a physical change during digestion?

• Chewing in the mouth breaks food into small pieces.

• Hydrochloric acid in the stomach breaks down proteins

Which answer choice describes only a chemical change during digestion?

• Enzymes in saliva start the digestion of starches before food is swallowed.

• Grinding in the mouth breaks food into small pieces.

Below are 2 diagrams. One of the circulatory system and one of the nervous system. Why are the patterns of the blood vessels and nerves similar?

• Both systems need to serve the entire body so branching is the best way yo accomplish that

• They are protected by the bones so they follow the bones