Solve these clues to fill the grid.
- A community of organisms where there are several interrelated ___ chains
- 1 Across
- Someone who manufactures something
- 2 Across
- The star our planet orbits
- 7 Across
- How plants make food from sunlight
- 8 Across
- The power to do work or make things move
- 9 Across
- A community of organisms where each member is eaten in turn by another member
- 1 Down
- Living thing that grows in soil and makes its own food
- 2 Down
- Any of a group of green pigments found in photosynthetic organisms
- 3 Down
- A terrestrial or aquatic flesh-eating mammal
- 4 Down
- A living organism characterized by voluntary movement
- 5 Down
- A person who uses goods or services
- 6 Down
- A polyhedron having a polygonal base and triangular sides with a common vertex
- 8 Down