Ecosystem
Ecosystem Test
Test Prep-2025-2026 Guide with Complete Questions and Answers (Expert Verified)
Study online at https://quizlet.com/_6qo3o6
1. Environment Populations cannot grow without stopping because of the _____
2. Limiting Factor A resource that keeps a population from growing forever (ex: food, water,
shelter, space, and other resources)
3. carrying capacity The largest number of organisms that can live in an environment
4. The limiting factor What happens when a population grows beyond its carrying capacity?
causes some individ-
uals to die or leave
the area
5. Yes, but only if the Can the carrying capacity change?
amount of the limit-
ing factor changes
6. Competition This happens when more than one individual or population tries to use the
same resource
7. Prey Organism that is eaten
8. Predator Organism that eats the prey
9. Symbiosis A close association between organisms of two or more species.
10. Mutualism Symbiotic relationship where both individuals are helped
11. Commensalism Symbiotic relationship where one individual is helped, the other is not
affected
12. Parasitism Symbiotic relationship where one individual is helped, and the other indi-
vidual is hurt
13. Parasite The organism that is helped in a parasitic relationship
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, Ecosystem
Ecosystem Test
Test Prep-2025-2026 Guide with Complete Questions and Answers (Expert Verified)
Study online at https://quizlet.com/_6qo3o6
14. Host The organism that is hurt in a parasitic relationship
15. Coevolution the long term changes that take place in two species because of their close
interactions with one another (ex: flower and pollinators)
16. Food, water, shelter, What are some resources that organisms compete for?
space, and sunlight
17. No Is the carrying capacity the same for all species?
18. Parasitism What symbiotic relationship is a flea and a dog in?
19. Mutualism What symbiotic relationship is a bee and a flower in?
20. Commensalism What symbiotic relationship is a remora and a shark in?
21. Food provides energy and nutrients
22. 3 There are _ groups based on how organisms get energy: producer, con-
sumer, and decomposer
23. Producer organisms that use energy from the sun to make their own food
24. Photosynthesis Producers use a process called _ to make their own food
25. Consumers Organisms that obtain energy and nutrients by eating other things
26. Cannot Consumers (can/cannot) make their own food
27. Herbivore eats only plants
28. Carnivore eats other animals
29. Omnivore eats plants and animals
30. Scavenger eats dead plants and animals
www.stuvia.com
Ecosystem Test
Test Prep-2025-2026 Guide with Complete Questions and Answers (Expert Verified)
Study online at https://quizlet.com/_6qo3o6
1. Environment Populations cannot grow without stopping because of the _____
2. Limiting Factor A resource that keeps a population from growing forever (ex: food, water,
shelter, space, and other resources)
3. carrying capacity The largest number of organisms that can live in an environment
4. The limiting factor What happens when a population grows beyond its carrying capacity?
causes some individ-
uals to die or leave
the area
5. Yes, but only if the Can the carrying capacity change?
amount of the limit-
ing factor changes
6. Competition This happens when more than one individual or population tries to use the
same resource
7. Prey Organism that is eaten
8. Predator Organism that eats the prey
9. Symbiosis A close association between organisms of two or more species.
10. Mutualism Symbiotic relationship where both individuals are helped
11. Commensalism Symbiotic relationship where one individual is helped, the other is not
affected
12. Parasitism Symbiotic relationship where one individual is helped, and the other indi-
vidual is hurt
13. Parasite The organism that is helped in a parasitic relationship
www.stuvia.com
, Ecosystem
Ecosystem Test
Test Prep-2025-2026 Guide with Complete Questions and Answers (Expert Verified)
Study online at https://quizlet.com/_6qo3o6
14. Host The organism that is hurt in a parasitic relationship
15. Coevolution the long term changes that take place in two species because of their close
interactions with one another (ex: flower and pollinators)
16. Food, water, shelter, What are some resources that organisms compete for?
space, and sunlight
17. No Is the carrying capacity the same for all species?
18. Parasitism What symbiotic relationship is a flea and a dog in?
19. Mutualism What symbiotic relationship is a bee and a flower in?
20. Commensalism What symbiotic relationship is a remora and a shark in?
21. Food provides energy and nutrients
22. 3 There are _ groups based on how organisms get energy: producer, con-
sumer, and decomposer
23. Producer organisms that use energy from the sun to make their own food
24. Photosynthesis Producers use a process called _ to make their own food
25. Consumers Organisms that obtain energy and nutrients by eating other things
26. Cannot Consumers (can/cannot) make their own food
27. Herbivore eats only plants
28. Carnivore eats other animals
29. Omnivore eats plants and animals
30. Scavenger eats dead plants and animals
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