Name _____________________________________________Date_____________Hour________
Populations/Communities/Ecosystems Final ...
_____10. Bears, snakes, and worms can be members of the same
a. species b. trophic level c. ecosystem ...
Define the following words:
Term Definition Organism 1 Organism 2
Symbiosis
Parasitism
Mutualism
...
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Populations Communities Ecosystems Final Exam Review

Published on: Mar 4, 2016
Published in: Education      Technology      
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Transcripts - Populations Communities Ecosystems Final Exam Review

  • 1. Name _____________________________________________Date_____________Hour________ Populations/Communities/Ecosystems Final Exam Review Directions: Select the best answer that completes each statement. Write the letter of your answer in the space provided. _____1. A group of organisms of the same species living together in the same place is called a a. community b. biome c. population d. habitat _____2. all of the following are biotic factors of a habitat except a. soil b. plants c. insects d. molds ____3. A relationship between a producer and consumer is best shown by a a. plant eating a fungus b. fox eating a mouse c. lion eating Ms. Long d. zebra eating grass _____4. In a food web, which type of organism receives energy from every other type of organism? a. producer b. carnivore c. decomposer d. herbivore _____5. The number of trophic levels in an ecological pyramid a. is limited by the amount of energy that is lost at each trophic level b. is unlimited due to the amount of energy provided by the sun c. never exceeds three d. equal to the number of customers that Wendy’s served _____6. Going one trophic level to the next higher level, a. the number of organisms increases b. the amount of usable energy increases c. the amount of usable energy decreases d. diversity of organisms increases _____7. What would happen to any food web if the plants were eliminated? a. the herbivores would change trophic levels b. herbivores would become carnivores c. the food web would collapse d. nothing would happen _____8. What term applies to most humans? a. detritivore b. producer c. herbivore d. omnivore _____9. In a meadow food chain, which is the correct order of energy flow? a. hawk – snake – mouse- grass b. snake – mouse – hawk- grass c. mouse – grass –hawk – snake d. grass – mouse – snake –hawk
  • 2. _____10. Bears, snakes, and worms can be members of the same a. species b. trophic level c. ecosystem d. none of the above _____11. Organisms that obtain their energy from the organic wastes and dead bodies at all the energy levels in an ecosystem are called a. decomposers b. detritivores c. consumers d. all of the above Directions: Fill in the blank 12. The same type of organisms living in the same area that are able to reproduce with one another are called a ______________________ 13. The nonliving factors in a habitat are called _____________________factors. 14. Animals known as __________________________eat only primary consumers. 15. The term _______________________ is given to the bacteria that break down dead tissue. Short Answer 16. Why are decomposers necessary for continuation of life on Earth? What would happen if they disappeared? 17. Humans, raccoons, and bears are omnivores. What adaptive advantage might this feeding strategy provide? 18. Why are producers a necessary part of every food web? 19. Why is it an advantage that parasites do not kill their hosts? 20. Give three examples of limiting factors (resources) that may affect the carrying capacity of an ecosystem. 21. How is the carrying capacity of a habitat affected by an increase in the population of consumers (herbivores) 22. What does a logistical graph look like? How is it different from an exponential graph? What do they show about the carrying capacity of an particular environment?
  • 3. Define the following words: Term Definition Organism 1 Organism 2 Symbiosis Parasitism Mutualism Commensalism Competition Density Dependent Factor