Thermoregulation in Organisms
Biology ⇒ Biological Systems and Homeostasis
Thermoregulation in Organisms starts at 7 and continues till grade 12.
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Describe how countercurrent heat exchange helps some animals conserve heat.
Describe how fur or feathers help animals maintain their body temperature.
Describe one behavioral adaptation that helps animals regulate their body temperature.
Describe the role of the hypothalamus in thermoregulation.
Explain how vasodilation helps in thermoregulation.
Explain why reptiles often bask in the sun during the morning.
Explain why small mammals lose heat more quickly than large mammals.
A lizard is seen lying on a warm rock in the morning. What type of thermoregulation is it demonstrating? (1) Endothermy (2) Ectothermy (3) Homeothermy (4) Poikilothermy
A lizard is seen lying on a warm rock in the morning. What type of thermoregulation is it demonstrating? (1) Endothermy (2) Ectothermy (3) Homeothermy (4) Poikilothermy
Which of the following animals is an ectotherm? (1) Dog (2) Lizard (3) Bird (4) Human
Which of the following is a behavioral adaptation for thermoregulation in elephants? (1) Flapping ears (2) Growing thick fur (3) Hibernating (4) Shivering
Which of the following is a consequence of hypothermia? (1) Increased sweating (2) Slowed metabolism (3) Vasodilation (4) Increased heart rate
Fill in the blank: Animals that can regulate their body temperature internally are called __________.
Fill in the blank: The ability of an organism to keep its body temperature within certain boundaries, even when the surrounding temperature is very different, is called __________.
Fill in the blank: The maintenance of a stable internal environment in the body is called __________.
Fill in the blank: The narrowing of blood vessels to reduce heat loss is called __________.
True or False: All animals use the same methods for thermoregulation.
True or False: Birds and mammals are both endothermic animals.
True or False: Endotherms require more food than ectotherms to maintain their body temperature.
True or False: Fever is a controlled increase in body temperature to help fight infection.
