Unit 1 Vocabulary Quiz

2. anything that has mass and takes up space
5. model that shows many interconnected food chains and pathways in which energy and matter flow through an ecosystem
9. simplified model that shows a single path for energy flow through an ecosystem
11. heterotroph that decomposes organic material and returns the nutrients to the soil, air, & water
12. organism that cannot make its own food and gets its nutrients and energy by feeding on other organisms
13. exchange of matter through the biosphere involving living organisms, chemical processes, and geological processes
15. heterotroph that consumes both plants and animals
16. heterotroph that preys on other heterotrophs
17. organism that captures energy from sunlight or inorganic substances to produce its own food
19. distance of a point on Earth's surface north or south of the equator

1. any living factor in an organism's environment
3. each step in a food chain or food web
4. a metabolic process that require oxygen
6. heterotroph that eats only plants
7. any nonliving factor in an organism's environment, such as soil, water temperature, and light availability
8. consists of short-term changes in temperature precipitation, clouds, and wind from day to day, or minute to minute
10. a metabolic process that does not require oxygen
13. total mass of living matter at each trophic level
14. a group of interacting populations that live in the same geographic area at the same time
18. weather conditions in a specific area, determined by latitude, elevation, ocean currents, and other factors