In which of Oceania’s ecosystems can you find tree kangaroos, frogs, various birds, ferns, and tall, dense trees?

Tree kangaroos, frogs, many birds, ferns, and tall, dense trees are characteristic of a warm, wet habitat with abundant plant life. That ecosystem is the tropical rainforest, so the best answer is C. The desert and tropical grassland are much more open and dry, while chaparral is dominated by shrubs.

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