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Ecosystem Homework Vocabulary #2

Across
Producers taking in carbon dioxide during the process of photosynthesis, and releasing oxygen
to use something again
Where something comes from
the chemical cycle by which nitrogen is converted into multiple forms as it circulates in the atmosphere, terrestrial, and marine ecosystems
Anything that has mass and takes up space
To pass from one to another
Down
Diagram that shows how energy moves from one feeding level to the next in a food chain
A group of overlapping food chains in an ecosystem
The sun providing energy for living things to grow
The ability to cause change or do work