Animal Kingdom Overview - Applications
Q. What is the primary evolutionary advantage of bilateral symmetry in animals?
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A.
Increased mobility
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B.
Better camouflage
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C.
Enhanced sensory perception
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D.
More efficient digestion
Solution
Bilateral symmetry allows for increased mobility and streamlined movement, which is advantageous for predation and escape.
Correct Answer: A — Increased mobility
Q. What is the primary function of the respiratory system in mammals?
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A.
Digestion of food
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B.
Transport of nutrients
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C.
Exchange of gases
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D.
Regulation of body temperature
Solution
The primary function of the respiratory system in mammals is the exchange of gases, specifically oxygen and carbon dioxide.
Correct Answer: C — Exchange of gases
Q. What is the primary mode of reproduction in most mammals?
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A.
Oviparous
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B.
Viviparous
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C.
Ovoviviparous
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D.
Asexual
Solution
Most mammals reproduce viviparously, meaning they give birth to live young rather than laying eggs.
Correct Answer: B — Viviparous
Q. Which group of animals is known for having a three-chambered heart?
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A.
Birds
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B.
Mammals
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C.
Reptiles
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D.
Amphibians
Solution
Amphibians typically have a three-chambered heart, which consists of two atria and one ventricle.
Correct Answer: D — Amphibians
Q. Which of the following animal groups is primarily aquatic and has gills for respiration?
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A.
Mammals
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B.
Birds
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C.
Fish
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D.
Reptiles
Solution
Fish are primarily aquatic animals that use gills to extract oxygen from water.
Correct Answer: C — Fish
Q. Which of the following is a characteristic feature of amphibians?
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A.
Feathers
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B.
Scales
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C.
Moist skin
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D.
Fur
Solution
Amphibians are characterized by their moist skin, which is essential for respiration and hydration.
Correct Answer: C — Moist skin
Q. Which of the following is NOT a characteristic of the animal kingdom?
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A.
Multicellularity
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B.
Heterotrophy
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C.
Cell walls
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D.
Nervous system
Solution
Animals do not have cell walls, which distinguishes them from plants and fungi.
Correct Answer: C — Cell walls
Q. Which structure is primarily responsible for the production of hormones in the human body?
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A.
Liver
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B.
Pancreas
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C.
Endocrine glands
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D.
Kidneys
Solution
Endocrine glands are primarily responsible for the production and secretion of hormones in the human body.
Correct Answer: C — Endocrine glands
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