2. Which of the following trophic levels in the
food pyramid has the most energy available?
a. 1
b. 2
c. 3
d. 4
4
3
2
1
a
3. Which of the following trophic levels in the food
pyramid would be the secondary consumer?
a. 1
b. 2
c. 3
d. 4
4
3
2
1
c
4. Which of the following trophic levels in the
food pyramid would be a herbivore?
a. 1
b. 2
c. 3
d. 4
4
3
2
1
b
5. Which of the following trophic levels in the
food pyramid would be the keystone species?
a. 1
b. 2
c. 3
d. 4
4
3
2
1
d
6. Which of the following is not abiotic?
a. Rocks
b. River
c. Algae
d. Soil
c
7. What is lost between each trophic level?
a. Kinetic energy
b. Heat
c. Matter
d. Mass
b
1 2 3 4
5
8. Which organism is the decomposer?
a. 1
b. 2
c. 3
d. 4
e. 5
e
1 2 3 4
5
9. Which organism is the tertiary consumer?
a. 1
b. 2
c. 3
d. 4
e. 5
d
1 2 3 4
5
10. Which organism is the producer?
a. 1
b. 2
c. 3
d. 4
e. 5
a
1 2 3 4
5
11. Which organism has the least energy
available?
a. 1
b. 2
c. 3
d. 4
e. 5
e
1 2 3 4
5
12. Which level of biological organization does
the picture describe?
a. Organism
b. Population
c. Community
d. Ecosystem
e. Biome
f. Biosphere
c
13. What is an organism that can make large organic
molecules from the energy of the sun?
a. Consumer
b. Herbivore
c. Decomposer
d. Producer
d
14. Which level of biological organization does
the picture describe?
a. Organism
b. Population
c. Community
d. Ecosystem
e. Biome
f. Biosphere
d
15. Which level of biological organization does
the picture describe?
a. Organism
b. Population
c. Community
d. Ecosystem
e. Biome
f. Biosphere
a
16. Which level of biological organization does
the picture describe?
a. Organism
b. Population
c. Community
d. Ecosystem
e. Biome
f. Biosphere
f
17. Which level of biological organization does
the picture describe?
a. Organism
b. Population
c. Community
d. Ecosystem
e. Biome
f. Biosphere
b
18. Which level of biological organization does
the picture describe?
a. Organism
b. Population
c. Community
d. Ecosystem
e. Biome
f. Biosphere
e
19. Which of the following chemical equations
shows photosynthesis?
a. 6CO2 + 12H2O + energy C6H12O6 + 6H2O + 6O2
b. C6H12O6 + 6O2 + 6H2O 6CO2 + 12H2O+ energy
a
20. Which of the following states that the amount of
usable energy in the universe is decreasing?
a. Law of conservation of mass
b. 1st law of thermodynamics
c. 2nd law of thermodynamics
d. Boyle’s Law
c
21. Which type of relationship is being shown in
the picture below?
a. Mutualism
b. Commensalism
c. Parasitism
d. Predation
The sea anemone provides protection
for the clown fish, and the clown fish
keep the sea anemone’s tentacles clean.
a
22. Which type of relationship is being shown in
the picture below?
a. Mutualism
b. Commensalism
c. Parasitism
d. Predation
d
23. Which type of relationship is being shown in
the picture below?
a. Mutualism
b. Commensalism
c. Parasitism
d. Predation
The Remora fish gain protection from
the shark and eat the leftovers, but the
shark does not gain or lose anything
from the Remora fish.
b
24. Which type of relationship is being shown in
the picture below?
a. Mutualism
b. Commensalism
c. Parasitism
d. Predation
The wasp lays its eggs on the caterpillar,
so that the babies can eat the caterpillar
when they hatch.
c
25. Which of the following terms best explains
the picture below?
a. Niche
b. Resource partitioning
c. Biosphere
d. Keystone species
b
26. Which of the following consume organic
matter from animal waste?
a. Tertiary consumer
b. Decomposer
c. Detritus feeder
d. Parasite
c
27. Which term best describes the picture
below?
a. Food web
b. Food chain
c. Energy pyramid
d. Ecological pyramid
a
28. A secondary consumer would eat:
a. tertiary consumers
b. Fungi
c. Grass
d. herbivores
d
29. Which of the following statements about
biogeochemical cycles is true?
a. They only include processes conducted by or
within living organisms.
b. They pertain only to the abiotic environment.
c. They describe the movement of water and
other materials through an ecosystem.
d. They only pertain to exchanges and
interactions that occur within the atmosphere.
c
30. How is carbon transferred from living
organisms to the atmosphere?
a. photosynthesis
b. decomposition
c. cellular respiration
d. burning fossil fuels
c
31. What is nitrogen fixation?
a. the conversion of gaseous nitrogen into an
organism friendly form
b. preplanned setting of atmospheric levels of
nitrogen at 78%
c. stabilizing elemental nitrogen into a gaseous two-
atom molecule
d. the reduction of nitrate (NO3
-) to gaseous nitrogen
a
32. Which is the fourth step in the nitrogen
cycle?
a. Ammonification
b. Nitrogen fixation
c. Denitrification
d. Assimilation
e. Nitrification
a
33. Which of the following processes plays an
important role in the phosphorus cycle?
a. nitrogen fixation
b. combustion
c. erosion
d. cellular respiration
c
34. Which of the following processes in not
involved in the hydrologic cycle?
a. condensation
b. precipitation
c. evaporation
d. combustion
d
35. Which of the following is not an example of a
fossil fuel?
a. wood
b. oil
c. natural gas
d. coal
a
