Homeostasis
What Is Homeostasis?
Comprehension Questions
Watch the video carefully and complete the comprehension questions and activities.
1. What is the average normal internal temperature of the human body?
a) 25° Celsius
b) 27° Celsius
c) 37° Celsius
d) 38° Celsius
2. Name two automatic responses that occur when the body heats up.
•
•
3. Name two automatic responses that occur when the external environment and the
body get cold.
•
•
4. Homeostasis is the maintenance of a consistent __________ environment, or a
__________ state, when the __________ environment changes.
5. Name the four components of a negative feedback loop.
•
•
•
•
6. Homeostasis is an automatic process in healthy organisms.
True
False
7. What is the term that refers to the normal or target value in any organism?
20SCI02A © ClickView Pty Limited 2021 Reproducing these additional resources in Australia: If your school is covered by an agreement with Copyright Agency, you may copy and
share this resource for teaching purposes under that agreement. This may result in a payment to ClickView from Copyright Agency from copyright fees paid on behalf of Australian schools.
Homeostasis - What Is Homeostasis? | Comprehension Questions
2
8. Thermoregulation is the only homeostatic process that normally takes place in the
human body.
True
False
9. The loss of leaves by deciduous trees is a homeostatic response to:
a) cold temperatures.
b) lack of sunlight.
c) reduced water availability.
d) strong winds.
10. Explain how ectothermic animals, such as reptiles, differ from endothermic animals,
such as mammals.
20SCI02A © ClickView Pty Limited 2021 Reproducing these additional resources in Australia: If your school is covered by an agreement with Copyright Agency, you may copy and
share this resource for teaching purposes under that agreement. This may result in a payment to ClickView from Copyright Agency from copyright fees paid on behalf of Australian schools.