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Name ONE example of an Australian endothermic animal and ONE example of an Australian ectothermic animal, and summarise their responses to the following environmental changes - HSC - SSCE Biology - Question 20 - 2001 - Paper 1
Question 20
Name ONE example of an Australian endothermic animal and ONE example of an Australian ectothermic animal, and summarise their responses to the following environmenta... show full transcript
Worked Solution & Example Answer:Name ONE example of an Australian endothermic animal and ONE example of an Australian ectothermic animal, and summarise their responses to the following environmental changes - HSC - SSCE Biology - Question 20 - 2001 - Paper 1
Step 1
Endothermic animal: Example and Response
Answer
One example of an Australian endothermic animal is the Koala.
Change 1: When the ambient temperature rises well above the average daily temperature range, koalas exhibit behaviors such as minimizing activity during the hottest parts of the day and seeking shade in trees to cool off. They may also increase their water intake.
Change 2: When the ambient temperature drops well below the average daily temperature range, koalas maintain their body temperature through metabolic heat production, often huddling together or into their tree hollows to conserve heat.
Step 2
Ectothermic animal: Example and Response
Answer
One example of an Australian ectothermic animal is the Eastern Blue-tongued Lizard.
Change 1: During periods of rising ambient temperatures, blue-tongued lizards will often bask in the sun to absorb heat, but when it becomes excessively hot, they will retreat to burrows or shaded areas to regulate their body temperature.
Change 2: When the ambient temperature drops significantly, blue-tongued lizards will bask more actively to raise their body temperature, and they may also become less active overall to conserve energy.