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ACSEE (Form 6) Regulation (Homeostasis) — practice questions

Explore 3 free Regulation (Homeostasis) questions in ACSEE (Form 6) Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Regulation (Homeostasis) questions and exercises with answers

Showing questions 1–3 of 3.

A mammal adapted to a hot desert is most likely to have:Read the answer and worked solution →Catch the adaptive featuresRead the answer and worked solution →Hot climate or cold climate?Read the answer and worked solution →

Worked practice questions

A mammal adapted to a hot desert is most likely to have:

  1. small ears and a thin coat
  2. small ears and a thick coat
  3. large ears and a thick coat
  4. large ears and a thin coat
Show answer and solution

Correct answer: D. large ears and a thin coat

1. In heat the problem is losing heat, so the body maximises the surface available. 2. Large ears carry a wide, richly supplied surface from which heat radiates away. 3. A thin coat lets heat escape rather than trapping it. 4. The cold-climate pattern is the reverse: small extremities cut heat loss and a thick coat traps air as insulation. 5. Pairing large ears with a thick coat combines a heat-losing feature with a heat-keeping one, which no climate selects for. _Source: NECTA ACSEE 2023 Biology 133/2, Question 2: Regulation (Homeostasis)_

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Catch the adaptive features

Read exercise and reference answers
Items
  1. Matches the category
    Yes
    Item
    Thick fur coat
  2. Matches the category
    Yes
    Item
    Blubber layer
  3. Matches the category
    Yes
    Item
    Large ears
  4. Matches the category
    Yes
    Item
    Small ears
  5. Matches the category
    Yes
    Item
    Sweat glands
  6. Matches the category
    No
    Item
    Vasodilation
  7. Matches the category
    No
    Item
    Vasoconstriction
  8. Matches the category
    No
    Item
    Shivering
  9. Matches the category
    No
    Item
    Panting
Category
Adaptive feature
Instructions
Catch structures a mammal permanently has. Let the switchable responses fall.

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Hot climate or cold climate?

Read exercise and reference answers
Left
Hot climate
Items
  1. Item
    Large ears
    Answer
    Hot climate
  2. Item
    Thin sparse coat
    Answer
    Hot climate
  3. Item
    Many sweat glands
    Answer
    Hot climate
  4. Item
    Thick blubber layer
    Answer
    Cold climate
  5. Item
    Small ears
    Answer
    Cold climate
  6. Item
    Dense fur coat
    Answer
    Cold climate
Right
Cold climate
Instructions
Swipe each feature to the climate that selects for it.

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