Which organ functions as part of the digestive system?

Which organ system includes the bones?

One role of rib bones in the _________________ system is to protect the heart from physical injury.

The spinal cord is a thick column of _____________________________________________.

The digestive system doesn’t work alone. After nutrients are absorbed in the small intestine, other body systems become involved in the process. Nutrient distribution depends on the _______________ system to transport nutrients to the cells around the body through the bloodstream.

Your heart is a powerful, fist-shaped muscles that beats 100,000 times a day to power the circulatory system. Which of the following are the functions of the circulatory system? Choose 2 functions that apply.

This system brings in oxygen and allows carbon dioxide to exit through the lungs.

This system allows the brain to communicate with the body.

This system moves the bones to move the body.

Every system in the body is made from cells, tissues, and organs. These building blocks all work together to allow you to grow, obtain energy, move, stay healthy, and reproduce. Each system provides a different function to support life. Which system is a control system in the body?

Picture of yourself hiking along a narrow trail in a densely packed forest miles from civilization. You hear branches breaking and all of a sudden you hear a ferocious growl. You realized that there might be a bear nearby. You slowly turn away from the noise and start heading back to the trail head, being aware of any movement or noise. What are the stimulus and response in this scenario?

If you are aware of something, your respiratory system is doing what?

If your body is aware, what does your nervous system do?

If your body is aware, the muscular and skeletal system does what?

If your body is aware, your circulatory system is doing what?

The desert might seem like an unlikely place to find fish. There are long dry periods between rains when most of the surface water evaporates. Nonetheless, about 30 species of desert pupfish live in the American Southwest. Very hot water, unpredictable weather, high salt content, and predators are all sources of ______________ for the pupfish.

The circulatory system and the respiratory system ensure that necessary materials reach all parts of the body. What is the relationship between these two systems?

The swimmer’s breathing rate and heart rate increase, supplying more oxygen to the cells.

Food from the swimmer’s breakfast has been broken down and is delivered to different cells.

What is the condition in which an organism’s internal environment is kept stable in spite of changes in the outside environment called?

Your body can regulate its temperature to maintain homeostasis by _______________.