Animal Homeostasis: Regulators vs Conformers
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Questions and Answers

How do regulators differ from conformers in maintaining homeostasis?

Regulators use internal control mechanisms to maintain stable internal environments, while conformers allow their internal environments to change with external conditions.

Why are Antarctic ice cod considered conformers, and how do they osmoregulate despite living in cold water?

Antarctic ice cod are conformers because their body temperature matches the cold water; they osmoregulate by actively managing their internal salt concentrations.

Provide examples of internal control mechanisms that regulators may use in thermoregulation.

Examples include vasodilation to release heat and shivering to generate heat, both essential for maintaining body temperature.

Discuss the significance of homeostasis in animal survival, particularly in changing environments.

<p>Homeostasis is critical for survival as it enables animals to function optimally despite external changes, affecting growth, reproduction, and overall health.</p> Signup and view all the answers

How might climate change impact the homeostatic mechanisms of temperature regulators and conformers?

<p>Climate change could disrupt the effectiveness of regulators' mechanisms, leading to stress or failure in maintaining homeostasis, while conformers might struggle to survive if external conditions shift beyond their adaptable limits.</p> Signup and view all the answers

What is the primary mechanism through which homeostasis is maintained in the body?

<p>Negative-feedback control.</p> Signup and view all the answers

At what approximate temperature is human body temperature typically maintained?

<p>Around 37°C.</p> Signup and view all the answers

What is one of the rare physiological phenomena that can amplify changes instead of reducing them?

<p>Positive feedback.</p> Signup and view all the answers

What is the normal blood pH value in humans that must be regulated for homeostasis?

<p>7.4.</p> Signup and view all the answers

What is the significance of maintaining specific plasma metabolite levels like glucose and calcium?

<p>They are essential for cellular functions including neuron and muscle activity.</p> Signup and view all the answers

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