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The circulatory and respiratory systems work together in a dynamic way to maintain oxygen and carbon dioxide levels in the human body. Students will engage with content through the New York State Making Connections Lab. In terms of the marathon runner mystery/problem, students may think that the runner died because of a heart attack or overexertion in some way. This instruction should help them see why the evidence doesn't support that conclusion.

Because the endocrine system is involved in the regulation of blood glucose, through the hormones insulin and glucagon, this is a slightly more complex topic than thermoregulation. Also, students may know of insulin as part of the treatment for diabetes. In this unit, however, we are only looking at insulin in terms of its role in maintaining homeostasis. The disruption of homeostasis in diabetics comes up in the next unit.

In the Explain phase, students should have an opportunity to make sense of what they have learned in the class so far. Because of this, this is a good phase for ensuring that students are reading content that is at their reading level.

Humans are complex organisms that maintain a narrow set of internal conditions through a system of feedback and communication mechanisms between multiple organ systems. In this unit, students will explore how body systems interact to effectively monitor and respond to both internal and external environmental changes. Students complete both Making Connections (a New York State required lab) and a human thermoregulation laboratory, both of which focus on skills of experimental design.

Students work in groups to complete this reading guide as a tool for navigating a complex text.

One example of homeostasis in humans is thermoregulation?the maintenance of core body temperature within a narrow range. Many mechanisms exist in the human body to make it possible for temperature to stay within a narrow range, close to 98.6oF; very high and very low temperatures indicate a disruption in homeostasis.

In this lab, students look at human temperature regulation by collecting and analyzing data.

In this performance task, students apply their knowledge of the different ways that the body maintains homeostasis, in order to determine the cause for a marathon runner's collapse.

This booklet can be used with teams of teachers to work through the resources in Unit 3.

In terms of the marathon runner mystery/problem, students may think that the runner died because they did not drink enough water before, during, or after the race. This instruction should help them see why the evidence doesn't support that conclusion.

This is a useful resource for building background knowledge, as a teacher, about the topic of homeostasis.

This task pushes students to apply content from Unit 2 to the issue of thermoregulation. Students may not understand that the whole purpose of thermoregulation is to keep the body in a range that is optimal for different biochemical reactions. During surgery, the opposite is true! The biochemical reactions need to slow down so that the person doesn't bleed to death.