Name: ________________________ Class: ___________________ Date: __________
ID: A
Earth Science Chapter 15 Section 3 Review
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____
1. What factors influence a region’s photosynthetic productivity?
a. temperature and density
c. sunlight and depth
b. salinity and sunlight
d. nutrients and sunlight
____
2. The use of light energy to convert water and carbon dioxide into energy-rich glucose molecules is called
____.
a. chemosynthesis
c. productivity
b. photosynthesis
d. trophism
____
3. Figure 15-1 shows the productivity of diatoms and zooplankton in polar oceans. According to Figure 15-1,
when does zooplankton biomass peak compared to the peak of diatom productivity?
a. Zooplankton peak at the same time diatoms peak.
b. Zooplankton peak earlier.
c. Zooplankton peak later.
d. The answer cannot be determined.
____
4. Figure 15-1 shows the productivity of diatoms and zooplankton in polar oceans. According to Figure 15-1,
when does zooplankton biomass decline in polar oceans?
a. January
c. June
b. April
d. October
____
5. Which of the following is NOT a main producer of food in the ocean?
a. algae
c. bacteria
b. sharks
d. plants
____
6. How is chemical energy transferred from algae to marine animals?
a. swimming
c. reproducing
b. feeding
d. none of the above
2
Name: ________________________
ID: A
____
7. The transfer of energy between trophic levels averages about ____.
a. 2 percent
c. 10 percent
b. 6 percent
d. 20 percent
____
8. Which term best describes energy transfer between trophic levels?
a. average
c. inefficient
b. efficient
d. high
____
9. All the complex feeding relationships among a number of different organisms is known as a(n) ____.
a. food series
c. food chain
b. ecosystem
d. food web
____ 10. A food chain is the passage of energy ____.
a. among many interactive organisms
b. along a single path
c.
d.
between herbivores only
between primary producers
____ 11. Where would a primary producer be located in a food chain?
a. first step
c. last step
b. middle step
d. each step
____ 12. Which animal would have the greatest chance of survival?
a. one that fed through a food web
b. one that fed through a food chain
c. one that ate a wide variety of prey
d. both a and c
Completion
Complete each statement.
13. Productivity in tropical regions is limited by the lack of ____________________.
14. Zooplankton eat algae; this is called a feeding stage or ____________________.
15. A(n) ____________________ is a sequence of organisms through which energy is transferred, beginning
with the primary producer.
Short Answer: Complete TWO questions for FIVE points each. Each additional correct answer is worth one point
extra credit.
16. What is chemosynthesis?
17. Why is only a small percentage of energy passed from one feeding population to the next?
2
Name: ________________________
ID: A
18. What is a food web?
3
ID: A
Earth Science Chapter 15 Section 3 Review
Answer Section
MULTIPLE CHOICE
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
D
B
C
D
B
B
A
C
D
B
A
D
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
PTS:
1
1
1
1
1
1
1
1
1
1
1
1
DIF:
DIF:
DIF:
DIF:
DIF:
DIF:
DIF:
DIF:
DIF:
DIF:
DIF:
DIF:
L1
L1
L2
L2
L1
L1
L1
L2
L1
L2
L2
L2
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
OBJ:
15.9
15.9
15.9
15.9
15.10
15.10
15.10
15.10
15.11
15.11
15.11
15.11
COMPLETION
13. ANS: nutrients
PTS: 1
DIF: L1
14. ANS: trophic level
OBJ: 15.9
PTS: 1
15. ANS: food chain
DIF: L1
OBJ: 15.10
DIF: L1
OBJ: 15.11
PTS: 1
SHORT ANSWER
16. ANS:
the process by which certain microorganisms create organic molecules from inorganic nutrients using
chemical energy
PTS: 1
DIF: L1
OBJ: 15.9
17. ANS:
Energy is consumed and lost at each level.
PTS: 1
DIF: L2
OBJ: 15.10
18. ANS:
a complex series of feeding relationships with many organisms interacting and depending on each other
PTS: 1
DIF: L1
OBJ: 15.11
1