Final answer:
Animals/plants, physical features, and climate are the three characteristics that determine a biome.
Step-by-step explanation:
Three characteristics that help determine a biome are animals/plants, physical features, and climate. Animals and plants found in a biome are adapted to the specific conditions of that environment. Physical features such as landforms, soil type, and water availability also play a role in defining a biome. Climate, including factors like temperature, precipitation, and sunlight, heavily influences the types of organisms that can thrive in a particular biome.
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