The cell shown sends messages throughout the body. Which body system does this cell belong to?

Which choice describes your body's ability to maintain a balanced internal condition (through changes like sweating to cool off and increased heart rate to pump more oxygen through the body)? (A) homeostasis (B) growth (C) digestion

List the five levels of organization in the human body from simplest to most complex. (Hint: The pictures can help you.)

The picture shows actual muscle cells that are working together, and together the cells form muscle _______________

Which body system eliminates waste and maintains the balance of water and chemicals within the body?

Oxygen is brought into the body (by breathing it in from the air) and carbon dioxide is removed (by exhaling from the lungs) primarily by which body system?

The cells shown are 3 different types of muscle cells. Name all 3 types.

What is most basic unit of life that all living things are made of?

The cell shown carries oxygen and nutrients throughout the body. Which body system does this cell belong to?

The cells shown help the body and its parts move in many different ways. Which body system do these cells belong to?

Explain how the digestive system and the circulatory system work together.

Nutrients from your food get into your bloodstream through which of these processes? (A) respiration (B) absorption (C) secretion (D) termination

Which body system (AND which organ in that system) is the most complex in the human body?