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Name: __________________________________________
Period: ___________
Chapter 2 Study Guide Review
1. Section 2.1 – Fill in the pyramid below of the five levels in the environment. Start from the fewest
individuals to the largest number of individuals.
2. Section 2.2 – Fill in the chart below about symbiosis.
Mutualism
Commensalism
Parasitism
Symbiotic
Relationship
How does the living
thing feel?
Example
3. Section 2.3 - Ways Ecosystems Change over Time
Type of Change
Primary Succession
Secondary
Succession
Soil
Cause
Pioneer Species
Choose and circle the letter of the best answer.
4. What is carrying capacity?
A.
The largest population an ecosystem can support
B.
The smallest population an ecosystem can support
C.
The number of species an ecosystem can support
5. A new species of bird moves into a habitat. The birds feed on a particular caterpillar, so that the resulting population of butterflies is
small. What can be said of the relationship between the birds and the butterflies?
A.
The birds and the butterflies have a commensal relationship
B.
The birds and butterflies compete.
C.
The birds are a limiting factor for the butterflies.
6. Certain types of worms live in the mud at the bottom of lakes. What does the mud represent of the worm?
A.
An ecosystem
B.
A community
C.
A habitat
7. What is a pioneer species?
A.
A species that travels within a ecosystem
B.
A species that is among the first to move into an area after a natural disaster
C.
A species that depends upon animal life
8. Which is an example of competition within the same species?
A.
Whales in a pod
B.
Wildebeests in a herd
C.
Creosote bushes in a desert
9. Which is an example of parasitism?
A.
Dog and tick
B.
Termite and protozoans
C.
Birds that fly south
10. Which is an example of secondary succession?
A.
Succession after a forest fire
B.
Succession after a large volcanic lava flow devastates an area
C.
Succession after a glacier retreats, leaving bare rock.
11. Identify three essential components of a habitat?
12. Any factor or condition that limits the growth of a population
in an ecosystem is called a limiting factor. Identify three examples
below.
a. __________________________________________
a. __________________________________________
b. __________________________________________
b. __________________________________________
c. __________________________________________
c. __________________________________________
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