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11. Patterns of Life

SS 109 Ms. Doyle
Across
Process in which chemicals in soil dissolve and travel to lower levels
Conversion of light energy from the sun into chemical energy
A group of ecosystems sharing similar climates & typical organisms
Down
Rich, dark organic material formed from decaying vegetable matter
A system formed by the interaction of a community of organisms with their physical environment
A treeless, grassy plain
A tropical grassland biome with some trees, large herbivores & distinct seasons
A term decsribing a species no longer alive