Introduction
In this lesson, it will be discussed the importance of homeostasis and maintaining a balance. While discovering the importance of epidemiology in research and how it can show environmental exposure and disease.
Homeostasis is a constant state of balance, in which your requires this balance for correct and proper functioning. Without a balance the body will not be able to function. An example of homeostasis is when in summer the body is hot and produces sweat to cool the skin, this allows the body to maintain a steady temperature.
Diabetes is a non-infectious disease where the body can not produce enough insulin, so insulin needs are required, so the body can remain homeostatic.
Task
You have recently graduated from a summer school called "Animal Kingdom University" where you learnt about animals, how they interact in environments and how it can impact on different characteristics and traits. While you were there you learnt about different Australian animals and native Australian plants. Unfortunately, while you were away you had no reception and were unable to communicate with your family, so as soon as you have reception you decide to type an email to your grandma about the interesting facts that you learnt while at summer school. Because if you impress Grandma enough then maybe you can get that new phone you have been wanting for months, for Christmas.
Process
- Create an email to Grandma; including subject, date, name, sign-off and paragraphs. Formal language included.
1. Discuss how organisms maintain their internal environment when impacted by external environments.
2. List and describe examples of organisms maintaining their response in a change of environment. With reference to temperature change and glucose.
3. Explain the mechanisms that endotherms use when regulating homeostasis. Justify your answer with reference to behaviour, structure and physiology
4. Describe how plants manage water balance, using secondary sources.
5. Challenge question: what is epidemiological studies and justify how it provides useful characteristics for exposure and disease.
Evaluation
| Description | Marks Rewarded |
|---|---|
| Correctly creates the email with; subject, date, name, to, signed off, and in paragraph format | /3 |
| Discuss how organisms maintain internal environment - with reference to loop systems and feedback. Describing how changing environments can affect survival | /5 |
| Provides examples of temperature change and glucose | /2 |
| Uses secondary sources | /2 |
| Describes traits for structural, behavioural and physical in endotherms. | / 5 |
| Explains using correct terminology how ectotherms maintain homeostasis and provides a relevant example | /3 |
| Describes how plants maintain water balance and provides examples, while using correct terminology | /4 |
| TOTAL MARKS | /24 |
Conclusion
| Bio11/12-5 | Analyses and evaluates primary and secondary data and information |
|---|---|
| Biol11/12-7 | Communicates scientific understanding using suitable language and terminology for a specific audience or purpose |
| Inquiry question |
How is an organism’s internal environment maintained in response to a changing external environment - construct and interpret negative feedback loops that show homeostasis by using a range of sources, including but not limited to: temperature and glucose investigate the various mechanisms used by organisms to maintain their internal environment within tolerance limits, including:
|
Credits
Teacher Page
Diversification: To apply diversification, higher academic students are challenged to answer the challenge question. Auditory and visual learners have been catered for with use of article and secondary sources
Rationale:
The lesson of homeostasis and the email, takes into consideration the importance of formal emails and the appropriate language that needs to be used. It teaches students the importance of communication and allows students to both be creative and engage in academic activity without standardised essay writing