Modified
True/False
Indicate whether the sentence or statement is true or false. If false, change
the identified word or phrase to make the sentence or statement true.
|
|
|
1.
|
Carbon dioxide is composed of
atoms of carbon and nitrogen. ____________________
|
|
|
2.
|
Autotrophs remove carbon
dioxide from the atmosphere during photosynthesis. ____________________
|
|
|
3.
|
When water vapor condenses, it
may change into a gas. ____________________
|
|
|
4.
|
DNA and protein both require
the essential element nitrogen. ____________________
|
|
|
5.
|
Living organisms can use
nitrogen in its gaseous form. ____________________
|
Multiple
Choice
Identify the letter of the choice that best completes the statement or answers the
question.
|
|
|
6.
|
A classmate always borrows
paper from you and never replaces it. This type of action illustrates _____. a. | commensalism | b. | mutualism | c. | parasitism | d. | how an ecosystem is
formed | | |
|
|
|
Figure 5-1
|
|
|
7.
|
In Figure 5-1, arrow B best
represents energy _____. a. | passed to the next trophic
level | b. | lost from the food chain as heat | c. | passed back to the sun | d. | that is trapped inside all
producers | | |
|
|
|
8.
|
In Figure 5-1, arrow A best
represents energy _____. a. | used by organisms for
growth | b. | trapped by consumers | c. | from the sun | d. | lost as heat | | |
|
|
|
Figure 5-2
|
|
|
9.
|
In Figure 5-2, organisms at
level A _____. a. | can trap sunlight energy | b. | carry out photosynthesis | c. | are plants or other
photoautotrophs | d. | a, b, and c are all
correct | | |
|
|
|
10.
|
Figure 5-2 is a forest food
chain. Trees and ferns would be found at _____. a. | level A | b. | level B | c. | levels C and D | d. | levels A and B | | |
|