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 works in some animals.
Describe how sweating helps cool the body.
Describe how the hypothalamus detects changes in body temperature.
Describe one behavioral adaptation that helps animals regulate their body temperature.
Describe the role of fur and feathers in thermoregulation.
Explain how vasodilation helps in thermoregulation.
Explain why elephants flap their ears in hot weather.
A lizard moves from a sunny rock to a shaded area during midday. What type of thermoregulation is this an example of? (1) Behavioral (2) Structural (3) Physiological (4) Genetic
A lizard moves from a sunny rock to a shaded area during midday. What type of thermoregulation is this an example of? (1) Behavioral (2) Structural (3) Physiological (4) Genetic
Which of the following animals is an ectotherm? (1) Dog (2) Lizard (3) Sparrow (4) Whale
Which of the following is a consequence of hypothermia? (1) Increased sweating (2) Slowed metabolism (3) Vasodilation (4) Increased heart rate
Which of the following is a danger of hyperthermia? (1) Frostbite (2) Heat stroke (3) Hypothermia (4) Dehydration
Fill in the blank: Animals that can regulate their body temperature internally are called __________.
Fill in the blank: The insulating layer of fat found in marine mammals is called __________.
Fill in the blank: The main organ system involved in thermoregulation in mammals is the __________ system.
Fill in the blank: The normal human body temperature is approximately __________ °C.
True or False: All mammals are endothermic.
True or False: Birds are able to maintain a constant body temperature regardless of the environment.
True or False: Ectotherms rely mainly on external sources of heat to regulate their body temperature.
True or False: Endotherms can survive in a wider range of environments than ectotherms.
