MTTC 103 Elementary Practice 2025 – 400 Free Practice Questions to Pass the Exam

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Question: 1 / 400

Which organism is an amphibian?

snake

frog

The correct answer is frog, as frogs are a well-known class of amphibians. Amphibians are distinguished by their unique life cycle, which typically includes both an aquatic larval stage and a terrestrial adult form. Frogs demonstrate this by hatching from eggs into tadpoles that live in water, breathe with gills, and eventually undergo metamorphosis to become adult frogs that can live on land and breathe air through lungs. This dual life in water and on land, along with their permeable skin, which can absorb water and gas, is characteristic of amphibians.

In contrast, snakes are reptiles, which do not undergo metamorphosis and have different reproductive and respiratory systems. Dolphins are mammals, known for giving live birth and having lungs, rather than gills. Pelicans are birds, which also do not share the amphibious traits of having a dual life cycle. Thus, the frog is distinctly categorized among organisms classified as amphibians.

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dolphin

pelican

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