Bronchi are

Grape-like structures where the exchange of carbon dioxide and oxygen take place in the lungs are called

The powerful muscle that controls breathing is called the

. What two human body systems work together to provide body cells with oxygen while removing carbon dioxide?

A flap of cartilage that covers the trachea and prevents food from getting into the lungs is the

Oxygen naturally moves from an area of high concentration to an area of low concentration. This process is called

Based on the information in the table above, what can be concluded?

Thin-walled vessels that return blood to the heart with valves are called __________.

Thick, muscular-walled vessels that move blood away from the heart are called __________.

____________________ must surround every cell in the human body for gas and nutrient/waste exchange.

The liquid portion of your blood is the

________________ stick together where bleeding is happening and form scabs.

___________________ are made in the bone marrow and lymph glands and kill bacteria and viruses.

____________________ carry oxygen, live about 120 days and are the most numerous cells in the body.

_______________ is a deposit of fatty or fibrous material in a blood vessel wall.

________________ is a waxy substance that occurs naturally in all parts of the body and is necessary for the body to function normally, but too much can clog arteries.

A student drew the picture of a human body system shown. The student labeled some of the organs of the system. The MAIN function of this human body system is to

Ms. Koss, Mr. Bear, Mrs. Rios planted three different plants that attract butterflies in the Razor Outback.

All three were planted in the same soil, at the same time.

They received the same amount of sunlight and water.

They tracked the number of butterflies each type of plant attracted over a one month period.

Name a constant (something that stays the same) from the experiment above.

What is the RANGE for respiration rate? (Hint: to find the range, highest number minus lowest number)

What is the FREQUENCY of the number 80 in the Pulse Rate column? (Hint: How many times did the number 80 occur?)

What is the MODE for Bromothymol Blue? (Hint: What is the MOST common number in the Bromothymol Blue column?)