Answer:
Biome
Step-by-step explanation:
Ecosystem is sum total of biotic and abiotic factors of a geographical area. Many ecosystem together makes a biome. Biome refers to a large geographical region of land characterized by presence of specific climate, soil, plants, and animals, irrespective of its location on the earth. When Sarah finds herself in the middle of the Amazon rainforest with different ecosystems; she is in a "biome".