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Name___________________________________________ Date____________
Ecology Review Block___________
Complete the following sentences with the correct term from the list below
1. All ecosystems are made up of ________________ and ___________________ components.
2. ______________ factors are living things, such as _______________ or _______________.
3. ______________factors are nonliving things, such as wind, ______________, or ______________.
4. ____________________ are organisms that get their energy from ___________________ resources, meaning they
make their own food. These organisms are also called ______________________.
5. ___________________ are organisms that get their energy by __________________other organisms. These
organisms are also called _________________________.
6. Why are producers so important to an ecosystem?
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KEY CONCEPT: Food chains and food webs model the flow of energy in an ecosystem.
Choose the correct term from the box below to fit each description.
7. I eat only plants. I am a(n) ___________________________.
8. I eat only other animals. I am a(n) _______________________.
9. I eat both plants and animals. I am a(n) _____________________.
10. I eat dead organic matter. I am a(n) _______________________.
11. I break down organic matter into simpler compounds. I am a(n) ______________________.
12. I am the first consumer above the producer level. I am a(n) ____________________.
13. I am a carnivore that eats herbivores. I am a(n) __________________________.
14. I am a carnivore that eats other carnivores. I am a(n) __________________________ .
15. The levels of nourishment in a food chain are called _______________________.
16. How is a food web different from a food chain?
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17. What is the difference between an organism’s habitat and its niche?
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18. For each type of symbiotic relationship, complete the chart with details about how each organism is impacted using the terms “Benefits,” “Harmed,” or “No impact.” Then give an example from nature of each type of symbiotic relationship.
|Symbiotic Relationship |Organism A |Organism B |Example |
|Mutualism | | | |
|Commensalism | | | |
|Parasitism | | | |
Choose a word from the box below that best completes each sentence.
19. When resources are ___________________ in a particular area, individuals may move into the population of this area. This movement of individuals into a population from a different population is called ______________________.
20. A very cold winter has left many deer in a population hungry and sick. By the end of the winter, this population will likely decrease because of __________________.
21. A deer population experiences growth when the rate of reproduction __________________. This change in population size is due to _____________________.
22. As humans move into their territory, many members of a deer population move away and join other herds. This movement of individuals out of a population into a new population is called ________________________.
23. How does the availability of resources affect population growth?
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The population of a predator can be limited by the available prey, and the population of prey can be limited by being caught for food. Use the information in the graph below to answer the questions that follow.
9) Describe the pattern seen in the graph above.
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10) How does the wolf population affect the carrying capacity of the moose population?
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autotrophs eating nonliving abiotic living temperature producers
moisture plants animals biotic consumers heterotrophs nonliving
carnivore herbivore secondary consumer decomposer detritivore
omnivore primary consumer tertiary consumer trophic levels
births increases emigration deaths immigration abundant
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