Name: ______Block: _____ Date: _____/_____/_____
ENVIRONMENTAL SCIENCE
Respond to all of the following problems in preparation for your Chapter 8 Test.
Chapter 8 Study Guide: Understanding Populations
1) What term generally describes an organism’s way of life? ______
2) What term describes the arrangement of a population within a given area? ______
3) What term describes a group of individuals of the same species, living in a given area? ______
4) What 2 terms describe a species interaction where one organism feeds on the other? ______
5) What does a population’s birth rate minus its death rate equal? ______
6) What term describes a species interaction where organisms attempt to use the same resources? ______
7) What term describes a species interaction where one organism benefits and the other is unaffected? ______
8) What term describes the maximum population that an ecosystem can support indefinitely? ______
9) What term describes a way to reduce competition between species? ______
10) What term describes a factor that determines the carrying capacity of an ecosystem? ______
11) Compare the reproductive potential of humans to that of bacteria. ______
12) Give an example of a population. ______
13) What is population density? ______
14) Is a cow feeding on grass in a pasture an example of predation or parasitism? Explain your answer. ______
15) Describe the relationship roles of a Canadian lynx and a snow-shoe hair. ______
16) In which 2 types of species interactions is neither organism harmed? ______
17) Give an example of a species with random population dispersion? ______
18) What is the difference between density-dependent deaths and density-independent deaths? Provide an example of each. ______
19) Some deer have evolved thick fur to help them survive colder climates. Explain why the thick fur is an example of an adaptation and not of coevolution. ______
20) A certain species of plants shows exponential growth after being introduced in a new area. What would happen to this plant’s population after a few years? ______
21) Consider the relationship between a rabbits and coyotes in a common area.
- If the rabbit population suddenly experienced exponential growth, what would happen to the coyote population? Why? ______
- If the rabbit population exceeds the carrying capacity, what will happen to the coyote population? Why? ______
22) List and briefly describe the 5 types of species interactions. Provide an example for each and describe the roles of the organisms involved.
- ______
Example: ______
- ______
Example: ______
- ______
Example: ______
- ______
Example: ______
- ______
Example: ______
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