Across
- 2. the process by which consumers (like animals) convert primary producers into energy.
- 5. the loss of hydrogen
- 8. When energy is lost as it moves from one trophic level to another
- 10. Any organism that consumes or feeds largely on primary consumers
- 12. an animal that obtains its nutrition by eating primary consumers and secondary consumers.
- 13. show how all the food chains in an ecosystem interact.
- 15. organisms that break down dead organisms and release the nutrients from the dead matter into the environment around them.
- 17. an organism's position in the food pyramid
- 19. an organism that can produce its own food using light, water, carbon dioxide, or other chemicals.
- 21. the process of absorbing nutrients during digestion and distributing them to cells for growth and repair.
- 22. a linear sequence of organisms through which nutrients and energy pass as one organism eats another.
- 23. model that shows the flow of energy from one trophic, or feeding, level to the next in an ecosystem.
Down
- 1. the synthesis of organic compounds from atmospheric or aqueous carbon dioxide.
- 3. an organism that feeds on primary producers
- 4. a system that permits the inflow and outflow of energies only
- 6. autotrophic organisms that can rely on chemosynthesis
- 7. an organism that cannot produce its own food, instead taking nutrition from other sources of organic carbon
- 9. organisms that can produce organic matter using an external energy source.
- 11. a measure of the total mass of living material in each trophic level.
- 14. a system that permits the inflow and outflow of information, materials, and energies
- 16. the process that cells use to make useable energy in the form of ATP
- 18. The production of an organic compound in a living thing
- 20. organisms, such as most microalgae, that capture light energy and incorporate carbon dioxide (CO2) to produce organic compounds.