Animal Kingdom Overview - Case Studies
Q. What is the primary function of the excretory system in animals?
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A.
To produce energy
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B.
To remove waste products
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C.
To facilitate movement
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D.
To regulate temperature
Solution
The primary function of the excretory system is to remove waste products from the body, maintaining homeostasis.
Correct Answer: B — To remove waste products
Q. What is the primary mode of reproduction in most reptiles?
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A.
Live birth
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B.
Egg-laying
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C.
Budding
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D.
Fission
Solution
Most reptiles primarily reproduce through egg-laying, which is a characteristic of their reproductive strategy.
Correct Answer: B — Egg-laying
Q. Which of the following animal groups is characterized by having a notochord at some stage of their life cycle?
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A.
Mollusks
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B.
Arthropods
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C.
Chordates
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D.
Echinoderms
Solution
Chordates are characterized by having a notochord at some stage in their life cycle, which is a defining feature of this group.
Correct Answer: C — Chordates
Q. Which type of animal is known for undergoing metamorphosis?
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A.
Fish
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B.
Mammals
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C.
Amphibians
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D.
Reptiles
Solution
Amphibians are known for undergoing metamorphosis, transitioning from a larval stage to an adult form.
Correct Answer: C — Amphibians
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