SmithLifeScience Name __________________ Period _____
Study Guide Chapter 22 Ecosystems and Biomes
22-1 Energy Flow in Ecosystems (pp.740-745)
1-5. Where Did Your Dinner Come From?
List what you had for dinner last night.
Next to each item write the name of the plant or animal that was the source of the food.
Example: Macaroni &
What I ate... Where it came from...
6-15 Section Vocabulary
|_____ Producer||A. consumers that eat only plants|
|_____ Consumer||B. consumers that eat both plants and aniamls|
|_____ Herbivore||C. carnivore that feeds on the bodies of dead organisms|
a series of events where one organism eats another and
|_____ Omnivore||E. an organism that makes its own food|
|_____ Scavenger||F. many overlapping food chains|
a diagram that shows the amount of energy that moves from one
feeding level to another in a food web
|_____ Food Chain||H. obtains energy by feeding on other|
|_____ Food Web||I.
break down wastes and dead organisms and returns the raw
materials to the ecosystem
|_____ Energy Pyramid||J. consumers that eat only animals|
Energy Roles (p.740-741)
16. Name a producer. ____________________________
17. Name a consumer. ____________________________
18. Name an omnivore. ____________________________
19. Name a scavenger. ____________________________
20. Name a decomposer. __________________________
Food Chains and Food Webs (p.742-743)
Create 3 food chains from this food web.
21. --> --> --> -->
22. --> --> --> -->
23. --> --> --> -->
Kangaroo & Dingo Graph
A university student was studying the animals in the Grant Memorial National Park.
Following are the numbers of kangaroos and dingoes that were recorded visiting a watering site in the middle of the park over two years.
Create a line graph by plotting the animal numbers on the vertical axis against time on the horizontal axis. Plot the kangaroo numbers and the dingo numbers on the same graph but use different colors for each line.
Energy Pyramids (p. 744-745)
27. In an energy pyramid the most energy is found at the _________________ level.
28. What percentage of energy is usually transferred to the next higher level? __________
29. How is the percentage of energy that is not transferred to the next higher level used?
30. Are there more organisms at the bottom or the top of an energy pyramid? ____________