ECOLOGY TEST
8th grade
Version 1
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
D
A
C
B
1. Which letter would best represent the caudal fin?
a. A
b. B
c. C
d. D
2. Which letter would best represent the pelvic fin?
a.
b.
c.
d.
A
B
C
D
D
A
C
B
3. Which letter would best represent the peduncle?
a. A
b. B
c. C
d. D
4. Which letter would best represent the dorsal fin?
a.
b.
c.
d.
A
B
C
D
5. The Theory of Natural Selection was proposed by
a. Sir Issac Newton
b. D.J. Jazzy Jeff
c. Charles Darwin
d. Albert Einstein
6. Influenza, or the common flu, is caused by a virus that invades our body making us
sick. This type of symbiosis would be:
a. Mutualism
b. Commensalism
c. Predation
d. Parasitiism
7. The drawing above shows the results of an experiment involving three juniper plants that were
allowed to grow in the same environmental conditions. One set of plants were infused with lichen
(fungus) attached to their roots and the other set without. Based upon the results the experiment,
what conclusion could be drawn?
a. Both the lichen and the fungus received a benefit from the relationship, making this an
example of mutualism
b. Both the lichen and the fungus received a benefit, making this an
example of commensalism
c. The fungus was hurt, while the lichen was benefitted, making it an example of a
parasitic relationship
d. The lichen was hurt, while the fungus was benefitted, making it an example of a
parasitic relationship.
8. In the food web shown, which consumers eat only producers?
a. The Owl
b. The Fox
c. The Hawk
d. The Bunny
9. The diagram below is a simple food web of organisms on a forest floor. Which of
these is most dependent on the earthworm for its food supply?
a. Slug
b. Ant
c. Snail
d. Centipede
10. Food webs are models used to show energy flow in ecosystems. In the food web
on the right, what is the main source of energy for the copepods?
a. Parrotfish
b. Shrimp
c. Corals
d. Algae
11. The branch of biology dealing with interactions among organisms and between organisms and
their environment is called
a. economy.
b. modeling.
c. recycling.
d. ecology.
12. All of the members of a particular species that live in one area are called a(an)
a. biome.
b. population.
c. community.
d. ecosystem.
13. Green plants are
a. producers.
b. consumers.
c. herbivores.
d. omnivores.
14. A snake that eats a frog that has eaten an insect that fed on a plant is a
a. first-level producer.
b. first-level consumer.
c. second-level producer.
d. third-level consumer.
15. Each of the following is an abiotic factor in the environment EXCEPT
a. plant life.
b. soil type.
c. rainfall.
d. temperature.
16. An interaction in which one organism captures and feeds on another organism is called
a. competition.
b. sybiosis.
c. mutualism.
d. predation.
17. The symbiotic relationship between a flower and the insect that feeds on its nectar is an
example of
a. mutualism because the flower provides the insect with
food, and the insect pollinates the flower.
b. parasitism because the insect lives off the nectar from
the flower.
c. commensalism because the insect does not harm the
flower and the flower does not benefit from the
relationship.
d. predation because the insect feeds on the flower.
18. Primary succession can begin after
a. a forest fire.
b. a lava flow.
c. farm land is abandoned.
d. a severe storm.
19. What is one difference between primary and secondary succession?
a. Primary succession is slow and secondary succession is
rapid.
b. Secondary succession begins on soil and primary
succession begins on newly exposed surfaces.
c. Primary succession modifies the environment and
secondary succession does not.
d. Secondary succession begins with lichens and primary
succession begins with trees.
20. What is the original source of almost all the energy in most ecosystems?
a.
b.
c.
d.
carbohydrates
sunlight
water
carbon
21. An experiment is designed to clear an oak-hickory forest and replant the area with
pines. Which of the following species would be most threatened by this experiment?
a. Hooded warbler
b. Summer tanager
c. Cardinal
d. Field Sparrow.
22. A student studying wildlife nesting
Patterns in the Sandy Beach and
Dune ecosystem of the Chincoteague
National Wildlife Refuge would
find nests of the least species
in which locations?
a. Nests in tree canopy or shrubs
b. Nests in tree trunks
c. Nests on ground
d. Nests on fresh water.
23. Which hypothesis would best be supported by this graph?
a. Over the years, the cardinal population has moved at a steady rate.
b. Over the years, the cardinal population has decreased.
c. Over the years, the cardinal population has increased.
d. Over the years, the cardinal population has changed due to human activity.
24. In any ecosystem, there is a limited number of resources that all organisms must share
in order to survive. Which term below indicates their struggle to obtain these resources?
a. Population
b. Consumers
c. Community
d. Competition
25. When an oil tanker leaks oil into the water of Galveston Bay and pollutes the water,
what type of pollution would this be?
a. Non-point source pollution
b. point source pollution
c. Littering
d. Seismic pollution
Blast from the Past!
C2H6
26. In the compound above, how many elements are present?
a. 2
b. 4
c. 6
d. 8
27. The phases of the moon are produced by:
a. the spin of the Earth
b. varying amounts of sunlight reaching the side of the moon that faces Earth
c. varying amounts of sunlight reaching the side of the moon that faces the sun
d. the orbit of the Earth around the moon
28. At first and third quarter moon phases:
a. the moon is basically at a 90 degree
angle from the sun
b. half of the side of the moon
we can see is lit up
c. A and B
d. none of these
29. You realize that you are about to miss your curfew, and hop on your bike
to get home before you’re grounded. If you live 15 miles away, and need
to be home in 1 hour, at what speed will you need to ride your bike?
(Remember, S= D/T)
a. 15 miles per hour
b. 15 miles per minute
c. 30 miles per hour
d. 30 miles per minute
30. In the element symbol to the right, how many neutrons would there be?
a. 23
b. 11
c. 22
d. 12
I sure have to
go to the
bathroom…..