Understanding Homeostasis

After playing soccer, Dan twisted his ankle and decided to apply an ice pack to it. Will his body temperature decrease?

Marissa and Lutz are debating whether to join the school debate team. Why or why not?

During a biology class, Marissa was explaining how the human body maintains a stable internal environment despite changes in the external environment. She referred to this process as homeostasis. Can you explain what homeostasis is?

Why is homeostasis important in maintaining a stable environment for a pet fish that Ramirez takes care of?

Negative feedback is a control system that helps the body maintain homeostasis by sending a signal to ____________ a response. For example, when Venus feels too hot, her body sends signals to stop sweating.

__________ feedback is the type of control system in effect when Venus feels hungry and eats.

During a science experiment, Dan noticed that when he added more sugar to the solution, it caused the reaction to ________ a response.

During a class discussion, Doris shared her experience of childbirth, explaining how it is another example of ____________ feedback.

During a science experiment, Venus and Marissa were discussing how the human body maintains balance. They wondered, what is a good definition of homeostasis?

• Homeostasis means that our body monitors the value of several parameters and prevents them from ever changing.

• Homeostasis means that our body doesn't regulate the value of different body parameters.

• Homeostasis means that our body monitors the value of several parameters and restores them to their correct value after any alteration.

• Homeostasis means that we stand still all the time.

During a science experiment, Nani, Dan, and Lutz were discussing how our bodies maintain balance. They wondered which of the following variables their bodies regulate:

• Salt concentration in blood

• Glucose concentration in blood

• Body temperature

• Blood volume

• All answers are correct