Homeostasis and Thermoregulation in Animals

<p>It decreases blood flow to the periphery to conserve heat (D)</p> Signup and view all the answers

<p>Sunbathing (B)</p> Signup and view all the answers

<p>Homeotherms rely on sweating and panting to cool down, which are less efficient than shivering and non-shivering thermogenesis (A)</p> Signup and view all the answers

<p>Metabolic rate increases when ambient temperature is outside the thermoneutral zone (C)</p> Signup and view all the answers

<p>Shivering uses muscle contractions while non-shivering uses brown adipose tissue (C)</p> Signup and view all the answers

<p>To prevent the formation of ice crystals within cells (B)</p> Signup and view all the answers

<p>Thermogenesis (C)</p> Signup and view all the answers

<p>Decreased migration success due to reduced availability of cooler water (C)</p> Signup and view all the answers

<p>Homeotherms have a higher metabolic rate and maintain a relatively stable body temperature. (C)</p> Signup and view all the answers

<p>Some populations hibernate, while others undergo short bouts of torpor. (B)</p> Signup and view all the answers

<p>Animals that have a wide range of temperature tolerance are better equipped to adapt to climate change. (C)</p> Signup and view all the answers

<p>They have a lower metabolic rate, requiring less energy intake. (A)</p> Signup and view all the answers

<p>Higher rates of genetic mutation among populations. (D)</p> Signup and view all the answers

<p>Melatonin has limited involvement in temperature regulation in ectotherms; its role is primarily in regulating circadian rhythms. (B)</p> Signup and view all the answers

<p>They rely on their thick fur for insulation and have a wider thermoneutral zone than other vertebrates. (C)</p> Signup and view all the answers

<p>They become hyperthermic to reduce the heat gradient between their body and the environment. (C)</p> Signup and view all the answers

<p>They exhibit a high metabolic rate to generate heat. (B)</p> Signup and view all the answers

<p>They disrupt the hypothalamus, causing difficulty in regulating temperature, particularly vasomotor control. (C)</p> Signup and view all the answers

<p>Reindeer fur provides insulation against cold, while camel fur prevents heat gain from the environment through convection and radiation. (C)</p> Signup and view all the answers

<p>They have a higher thermoneutral zone than other vertebrates, allowing them to stay warm at lower temperatures. (A)</p> Signup and view all the answers

<p>Tolerance (C)</p> Signup and view all the answers

<p>A behavior that is beneficial in one context but harmful in another. (D)</p> Signup and view all the answers

<p>Depletion of energy reserves necessary for migration. (B)</p> Signup and view all the answers

<p>They lead sockeye salmon to prefer habitats where they are more vulnerable to predation. (A)</p> Signup and view all the answers

<p>Compromised reproduction in altered habitats. (A)</p> Signup and view all the answers

<p>The consequences of adaptive behaviors in different contexts. (D)</p> Signup and view all the answers

<p>The alteration of their habitat disrupts their preferred behaviors for safety. (B)</p> Signup and view all the answers

<p>Behavioral responses to social dominance and aggression (C)</p> Signup and view all the answers

<p>Conservation strategies must consider behavioral adaptations to changing conditions. (A)</p> Signup and view all the answers

<p>Development of homeothermy (B)</p> Signup and view all the answers

<p>Increased risk of mortality due to energy depletion. (D)</p> Signup and view all the answers

<p>Heterothermy and social thermoregulation (D)</p> Signup and view all the answers

<p>Insights into torpor and behavioral thermoregulation (B)</p> Signup and view all the answers

<p>Thermoregulation processes (B)</p> Signup and view all the answers

<p>It acts as a buffer against climate warming (D)</p> Signup and view all the answers

<p>Physiological effects of pyrogens (B)</p> Signup and view all the answers

<p>Variability in thermoregulation among species (D)</p> Signup and view all the answers

<p>The use of behavioral strategies, such as seeking out shade or basking in the sun, to regulate body temperature. (C)</p> Signup and view all the answers

<p>Darker colored cordylids can absorb more heat, allowing them to remain active even in colder temperatures. (A)</p> Signup and view all the answers

<p>Poikilotherms are exclusively dependent on external heat sources, whereas homeotherms are able to generate their own heat internally. (C)</p> Signup and view all the answers

<p>They aggregate in large groups to share body heat and create a stable microclimate. (D)</p> Signup and view all the answers

<p>Wood turtles move into forest clearings to bask when temperatures are favorable. (A)</p> Signup and view all the answers

<p>To signal to other lizards for social purposes. (C)</p> Signup and view all the answers

<p>They lack the physiological mechanisms to generate internal heat. (A)</p> Signup and view all the answers

<p>Habitat choice to find optimal temperatures. (D)</p> Signup and view all the answers

The condition of relying on external environments for body heat.

Organisms that derive body heat primarily from their surroundings.

Adjusting body temperature through movement and position changes.

Wood turtles bask in sunlight but return to cooler streams at night.

Sustained temperatures optimal for metabolism and activity.

The ability to maintain constant body temperature regardless of environment.

Internal processes that regulate body temperature independent of ambient conditions.

Variability in color among species, influencing heat absorption/dissipation.

Substances like glucose and urea that protect cells from freezing damage.

A state of reduced metabolic activity to conserve energy.

Different methods animals use to manage their body temperature.

The ability of animals to adapt their temperature management depending on environmental conditions.

The speed at which an organism uses energy to maintain life functions.

Cool habitats that provide a safe environment during warm conditions.

A natural internal process regulating the sleep-wake cycle and other biological functions on a roughly 24-hour cycle.

A hormone produced by the pineal gland, involved in temperature regulation in ectotherms.

A brain region that acts as a thermostat, triggering responses to temperature changes.

A drop in body temperature due to disruptions in hypothalamic regulation.

The range of ambient temperatures where homeotherms can maintain body temperature without metabolic increase.

The ability to maintain different body temperatures in different regions.

A state some animals enter, allowing them to survive extreme conditions, such as freezing temperatures.

A situation where adaptive behavior in one context leads to negative outcomes in another context.

The process by which organisms maintain their internal temperature within a tolerable range.

The migratory journey of steelhead salmon that can be impacted by energy depletion.

The increased risk of predation and reduced reproductive success due to habitat selection under high temperature conditions.

Severely elevated temperatures that affect animal behaviors, especially in aquatic environments.

Stored energy within organisms that is crucial for activities like migration or reproduction.

The likelihood of being hunted by predators, which can increase under certain environmental conditions.

The ability of an organism to maintain a stable body temperature through internal processes.

The responsiveness of cold-blooded animals to temperature changes affecting their performance.

Behavioral adjustments animals make to manage temperature in social groups.

Using environmental heat sources without active effort to maintain body temperature.

Behavioral methods employed to regulate body temperature actively, like seeking shade.

The ability of an organism to change its behavior in response to environmental changes.

An increase in body temperature as a response to infection or illness, often caused by pyrogens.

Isometric contraction of skeletal muscles to generate heat in cold conditions.

Heat production from metabolic processes, specifically in brown adipose tissue.

Metabolic rate when at rest and in a thermoneutral zone.

Narrowing of blood vessels to conserve body heat.

Cooling through processes like sweating or panting as temperatures rise.