Life Science

Chapter 24: Interactions of Life

Standardized Test Practice

1.
All the organisms of the same species living in an area at the same time make up a
A)community.
B)population.
C)ecosystem.
D)habitat.
2.
Which of the following terms specifies the place where an organism lives?
A)biosphere
B)habitat
C)community
D)ecosystem
3.
The largest number of individuals of one species that an ecosystem can support over time is its
A)carrying capacity.
B)limiting factor.
C)competition limit.
D)sample count.
4.
The green plants growing around a pond are
A)consumers.
B)decomposers.
C)producers.
D)saprophytes.
5.
Based on the information in the diagram, you can deduce that the organism represented by the "?" is a(n)

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A)carnivore.
B)decomposer.
C)herbivore.
D)omnivore.
6.
What does the diagram show?

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A)a food web
B)the biosphere
C)a population
D)a symbiotic relationship
7.
Which of the following organisms in the diagram compete for the same food source?

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A)deer and snake
B)eagle and mouse
C)owl and deer
D)fox and snake
8.
Which of the following is not part of an organism's niche?
A)how it digests food
B)how it avoids danger
C)how it finds a mate
D)how it obtains shelter
9.
A puppy infected with roundworms is an example of
A)competition.
B)parasitism.
C)commensalism.
D)mutualism.
10.
Which of these tends to decrease the size of a population?
A)more births than deaths
B)more movements into an area than out of an area
C)plentiful food supplies
D)lack of rain
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