Thermoregulation in Organisms
Biology ⇒ Biological Systems and Homeostasis
Thermoregulation in Organisms starts at 7 and continues till grade 12.
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A marathon runner collapses due to heat stroke. Explain the physiological failure in thermoregulation that leads to this condition.
Describe how countercurrent heat exchange works in animals such as fish or birds.
Describe how fever is related to thermoregulation.
Describe how insulation helps in thermoregulation in mammals.
Describe the difference between endotherms and ectotherms.
Describe the role of brown adipose tissue in thermoregulation.
Describe the role of the hypothalamus in thermoregulation.
A marathon runner collapses due to heat stroke. Explain the physiological failure in thermoregulation that leads to this condition.
A lizard moves between sun and shade to regulate its body temperature. This is an example of: (1) Physiological adaptation (2) Behavioral adaptation (3) Structural adaptation (4) Genetic adaptation
A person is exposed to a cold environment. Which of the following responses would you expect? (1) Vasodilation (2) Sweating (3) Shivering (4) Increased evaporation
Sweating is an example of which type of heat loss? (1) Conduction (2) Evaporation (3) Radiation (4) Convection
Which of the following animals is an example of an endotherm? (1) Frog (2) Lizard (3) Bird (4) Snake
Fill in the blank: Animals that maintain a constant body temperature regardless of the environment are called __________.
Fill in the blank: The main control center for thermoregulation in the human brain is the __________.
Fill in the blank: The process by which animals enter a state of decreased physiological activity during hot or dry periods is called __________.
Fill in the blank: The process by which heat is transferred by the movement of fluids or gases is called __________.
True or False: Birds use countercurrent heat exchange in their legs to minimize heat loss.
True or False: Ectothermic animals rely primarily on external sources of heat to regulate their body temperature.
True or False: Hibernation is a strategy used by some animals to survive extreme cold by lowering their metabolic rate.
True or False: Panting increases heat loss by increasing evaporation from respiratory surfaces.
