Ecosystem vocabulary quiz

Created April 2020 by Bree Latner, Offline version here
Video by Paul Anderson, also on his website Bozeman Science.


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1. The dying off of a species or population.
2. The trophic level of organisms that obtain energy by consuming primary consumers (one word).
3. Growth pattern that occurs in a population when resources are not limiting (one word).
4. All of the communities of living organisms and their interactions with their non-living environment in an area.
5. The living matter in an ecosystem.
6. Position of organisms in a food chain or food web in an ecosystem (one word).
7. Alteration of worldwide weather patterns due to rising levels of atmospheric carbon dioxide (one word).
8. The non-living mater in an ecosystem.
9. The trophic level of organisms that obtain energy by consuming primary producers (one word).
10. The trophic level of organisms that captures free energy and store it as organic matter (one word).
11. The number of individuals of a species that an ecosystem can support (one word).
12. Two species that rely on the same resource must com-pete for that resource in a habitat (one word).
13. The amount of living matter in a unit area of a trophic level.
14. Regulation of a population because of abiotic factors in the ecosystem (one word).
15. Regulation of a population because of the number of organisms within the population (one word).
16. Linear pathway of movement of biomass between organisms through trophic levels in an ecosystem (one word).
17. The rate of biomass production per meter in an ecosystem (one word).
18. Branching pathways of movement of all biomass between organisms through trophic levels in an ecosystem (one word).
19. The trophic level of organisms that obtain energy by consuming secondary consumers (one word).
20. Leveling off of population growth that occurs due to limited resources (one word).