Podcast
Questions and Answers
What type of relationship can be seen between ectotherms and their environment?
What type of relationship can be seen between ectotherms and their environment?
- Acute responses only
- Chronic responses only
- Evolutionary responses only
- All of the above (correct)
Which factor influences the metabolic rate of cold-acclimated fish?
Which factor influences the metabolic rate of cold-acclimated fish?
- Increased number of mitochondria
- Unchanged electron transport chain enzymes
- Decreased enzyme activity
- Altered Krebs cycle enzymes (correct)
In endothermy, what does the thermoneutral zone (TNZ) represent?
In endothermy, what does the thermoneutral zone (TNZ) represent?
- Range of temperatures where body temperature remains constant (correct)
- Range of temperatures where metabolic rate decreases
- Range of temperatures where animals hibernate
- Range of temperatures where heat transfer stops
What is the consequence when the animal's body temperature is higher than the ambient temperature?
What is the consequence when the animal's body temperature is higher than the ambient temperature?
What is a characteristic of homeothermy in terms of physiological adaptations?
What is a characteristic of homeothermy in terms of physiological adaptations?
Which group shows an evolutionary adaptation in response to environmental changes?
Which group shows an evolutionary adaptation in response to environmental changes?
What is the term for an animal that relies on metabolic production of heat to warm its tissues?
What is the term for an animal that relies on metabolic production of heat to warm its tissues?
Which term describes an animal whose body temperature is determined by external conditions?
Which term describes an animal whose body temperature is determined by external conditions?
What is the mechanism by which an organism maintains a relatively constant tissue temperature called?
What is the mechanism by which an organism maintains a relatively constant tissue temperature called?
Which of the following terms best describes the regional differences in body temperatures within a single individual?
Which of the following terms best describes the regional differences in body temperatures within a single individual?
What do we call the process where an organism adjusts its metabolic rate to compensate for changes in temperature?
What do we call the process where an organism adjusts its metabolic rate to compensate for changes in temperature?
Which term best describes an animal that thermoregulates by physiological means rather than relying on external conditions?
Which term best describes an animal that thermoregulates by physiological means rather than relying on external conditions?
What is the formula for heat production in animals to prevent heat loss?
What is the formula for heat production in animals to prevent heat loss?
What is the term for the resistance to dry heat loss often referred to as insulation?
What is the term for the resistance to dry heat loss often referred to as insulation?
In cold environments, what happens to the metabolic rate of animals as ambient temperature decreases?
In cold environments, what happens to the metabolic rate of animals as ambient temperature decreases?
Which physiological adaptation becomes maximized in animals when exposed to temperatures below their thermal neutral zone (TNZ)?
Which physiological adaptation becomes maximized in animals when exposed to temperatures below their thermal neutral zone (TNZ)?
Which of the following does NOT play a role in nonshivering thermogenesis in mammals?
Which of the following does NOT play a role in nonshivering thermogenesis in mammals?
What physiological process enables heat conservation in animals by cooling appendages to limit overall heat loss?
What physiological process enables heat conservation in animals by cooling appendages to limit overall heat loss?
Which of the following is a form of insulation utilized by animals to regulate their body temperature?
Which of the following is a form of insulation utilized by animals to regulate their body temperature?
