Indiana Science Grade 7

Chapter 7: Interactions of Living Things

Section 3 Self-Check Quiz-Eng.

1.
Which one of the following is an example of predation?
A)bats eating insects
B)bees collecting nectar from flowers
C)deer drinking water from a stream
D)birds building nests
2.
The role that a species plays in a community is its __________.
A)niche
B)habitat
C)biotic potential
D)carrying capacity
3.
How do decomposers obtain energy in an ecosystem?
A)through photosynthesis
B)from breaking down dead organisms
C)through symbiosis
D)from the atmosphere
4.
Which organisms in a food chain have the least available energy?
A)those in the first link
B)those in the middle links
C)All have the same amount of available energy.
D)those in the last link
5.
What provides a more accurate model of the way energy moves through a community?
A)a food chain
B)the water cycle
C)a food web
D)the nitrogen cycle
6.
Which one of the following would be an example of an organism you would expect to find at the bottom of an ecological pyramid?
A)beetle
B)human
C)oak tree
D)squirrel
7.
An energy pyramid usually has only __________ levels.
A)one or two
B)three or four
C)four or five
D)five or six
8.
How long have the carbon atoms in your body been on Earth?
A)billions of years
B)as long as you have been alive
C)probably less than one year
D)15 minutes
9.
The water cycle involves the processes of evaporation, condensation, and __________.
A)precipitation
B)decomposition
C)photosynthesis
D)symbiosis
10.
What cycle of matter involves carbon dioxide in Earth's atmosphere?
A)nitrogen
B)carbon
C)water
D)oxygen
11.
Bacteria nodules associated with certain plants change _________ from the air into a form that can be used by most organisms.
A)carbon dioxide
B)oxygen
C)nitrogen
D)water vapor
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