Organism that captures energy from the sun and stores it as food

nonliving parts of an ecosystem

organisms that break down dead matter into simpler compounds

living parts of an ecosystem

feeding relationship between a producer and a single chain of consumers

model of the feeding relationships between many consumers and producers

All living things on Earth uses this element as an important building block in food and living matter

Lightning strikes break apart or fix this element

What factor is LEAST important in determining plant life in a biome?

What is the process by which water in rivers, lakes, and oceans is converted to a gas?

Which best describes the components of an ecosystem?

What is the primary source of energy for most ecosystems?

Which organism is a decomposer?

Plants use this gas as part of the process of photosynthesis to produce sugars

Animals can use nitrogen directly from nitrogen gas

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