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WorksheetsEcology review
Total questions: 55
Worksheet time: 55mins
Name
Class
Date
1.
Which symbols best describe mutualism?
a)
+,+
b)
+,-
c)
+,0
d)
-,0
2.
Which symbols best describe parasitism?
a)
+,+
b)
+,-
c)
+,0
d)
-,0
3.
Which symbols best describe commensalism?
a)
+,+
b)
+,-
c)
+,0
d)
0,0
4.
A tick and a dog have this type of relationship.
a)
mutualism
b)
commensalism
c)
neutralism
d)
parasitism
5.
In a parasitic relationship, one organism is ___________ and one organism is benefiting.
a)
helped
b)
harmed
c)
not effected
d)
happy
6.
In a mutual relationship, both organisms are ________________.
a)
hurt
b)
not effected
c)
harmed
d)
benefiting
7.
Commensalism is where one organism is benefiting and the other organism is _____________________.
a)
not effected
b)
helped
c)
harmed
d)
hurt
8.
1. A bee and a flower work together to benefit each other. This is an example of _________________. The bee helps the flower by pollinating it and the flower helps the bee by providing it with nectar.
a)
commensal relationship
b)
parasitic relationship
c)
mutual relationship
9.
Lion and Zebra - The lion hunts and kills the zebra for its food.
a)
Predation
b)
Mutualism
c)
Commensalism
d)
Parasitism
10.
Bear and Salmon - The bear catches salmon in the river and eats it for food.
a)
Predation
b)
Mutualism
c)
Commensalism
d)
Parasitism
11.
Bear and Berries - The bear forages through the forest and finds berries for food.
a)
Predation
b)
Mutualism
c)
Commensalism
d)
Parasitism
12.
Grasshopper and Leaf - A grasshopper lands on a plant and eats its leaves for food.
a)
Predation
b)
Mutualism
c)
Commensalism
d)
Parasitism
13.
A mite lives in the base of the eyelashes of people who use mascara. It feeds on the mascara; it does not seem to harm people. What type of symbiotic relationship is this?
a)
mutualism
b)
commensalism
c)
parasitism
d)
predation
14.
A coyote captures, kills, and eats a rabbit. What type of symbiotic relationship is this?
a)
mutualism
b)
commensalism
c)
parasitism
d)
predation
15.
A tapeworm lives in the intestines of a dog. It absorbs food the dog has eaten and grows larger in the process. The dog becomes weaker from malnutrition. What type of symbiotic relationship is this?
a)
mutualism
b)
commensalism
c)
parasitism
d)
predation
16.
The flower of the yucca plant provides the only location where the yucca moth can lay her eggs. In the process, the moth pollinates the yucca flower. What type of symbiotic relationship is this?
a)
mutualism
b)
commensalism
c)
parasitism
d)
predation
17.
Cleaner shrimp living in the ocean eat ectoparasites (parasites on the outer surface of the animal) off of fish. What type of symbiotic relationship is this?
a)
mutualism
b)
commensalism
c)
parasitism
d)
predation
18.
Bacteria that live on the surface of our teeth require sugar from our food to survive. A by-product of their metabolism (body processes) decays the enamel of teeth. What type of symbiotic relationship is this?
a)
mutualism
b)
commensalism
c)
parasitism
d)
predation
19.
Bass found in warm water lakes of Colorado eat gizzard shad, a small fish grown and raised by the Colorado Division of Wildlife. What type of symbiotic relationship is this?
a)
mutualism
b)
commensalism
c)
parasitism
d)
predation
20.
Energy is passed along the organisms in a food chain. What is the original source of the energy?
a)
decomposers
b)
consumers
c)
producers
d)
sun
21.
This organism recycles nutrients back into the soil when it breaks down dead stuff
a)
producers
b)
consumers
c)
decomposers
22.
What is the name for the organism that eats the producer?
a)
primary consumer
b)
secondary consumer
c)
tertiary consumer
d)
producer
23.
What is the name for the organism that eats the primary consumer?
a)
secondary consumer
b)
tertiary consumer
c)
producer
d)
decomposer
24.
Consumers can make their own food
a)
True
b)
False
25.
Which organism is the producer?
a)
small fish
b)
penguin
c)
algae/seaweed
d)
killer whale
26.
Earthworms help break down plant and animal remains and return the nutrients back into the soil. What are earthworms?
a)
consumers
b)
decomposers
c)
producers
d)
predators
27.
The arrows in a food chain show....
a)
scavenging
b)
Hunting
c)
Energy flow
d)
Waste
28.
Why might an organism have more than one arrow coming from them in a food web?
a)
More than one organism may eat them.
b)
They may eat more than one other organism.
c)
This organism gets its energy from multiple sources.
d)
They have no resources available to them.
29.
Why is there a limited amount of energy that can be passed on to the next feeding level?
a)
There is never enough sunlight available.
b)
Some ecosystems have limited resources.
c)
Organisms use some of the energy they get from eating.
d)
All the energy is available to be passed on.
30.
What may happen if the snowshoe hare was removed from the food web pictured?
a)
The insects in the habitat would increase.
b)
The shrew population would decrease due to being only hawk food source.
c)
The willow tree population would decrease.
d)
Foxes would dies due to no food source.
31.
The fox in this food web would be considered a:
a)
Carnivore
b)
Producer
c)
Herbivore
d)
Omnivore
32.
Which is a decomposer ?
a)
rabbit
b)
worm
c)
dirt
d)
flower
33.
Where do all life forms get their energy?
a)
Earth's Core
b)
Water
c)
Plants
d)
The Sun
34.
Which is a decomposer ?
a)
rabbit
b)
worm
c)
dirt
d)
flower
35.
Where do all life forms get their energy?
a)
Earth's Core
b)
Water
c)
Plants
d)
The Sun
36.
Where an animal lives is called the animal's ______
a)
wildlife
b)
habitat
c)
environment
d)
carnivore
37.
Which option is not a consumer ?
a)
Herbivore
b)
Omnivore
c)
plants
d)
Carnivores
38.
What are decomposers?
a)
Bacteria,fungi....
b)
Sheeps, cows....
c)
Flies, birds....
d)
Fish, Shark....
39.
An organism that lives by breaking apart dead organic matter into simpler parts is...
a)
scavenger
b)
consumer
c)
decomposer
d)
carnivore
40.
Which part of a plant collects nutrients and water?
a)
root
b)
stem
c)
flower
d)
leaves
41.
Concentration of toxins in an organism as a result of ingesting other plants/animals in which the toxins are widely distributed
a)
biomagnification
b)
point-source pollution
c)
artificial eutrofication
d)
consumable pollution
42.
Identify the process shown in this diagram.
a)
Extinction
b)
Toxin Accumulation
c)
Pollution
d)
Biomagnification
43.
What do the small dots in the picture represent?
a)
DDT
b)
Food
c)
Energy
d)
Biomass
44.
What do the small dots in the picture represent?
a)
DDT
b)
Food
c)
Energy
d)
Biomass
45.
Which organism in this diagram has the highest DDT concentration?
a)
Zooplanktons
b)
small fish
c)
large fish
d)
Fish-eating birds
46.
The process when concentrations of a harmful substance increases in organisms at higher trophic levels in a food chain or food web.
a)
Biomagnification
b)
Predation
c)
Extinction
d)
Accumulation
47.
One of the first widely used pesticides produced and was widely used because it was cheap, remained active for a long time, and killed many insect considered pests.
a)
Baygon
b)
Pyrethroids
c)
Raid
d)
DDT
48.
Which trophic level is affected most drastically by bioaccumulation of toxins within their tissues?
a)
producers
b)
primary consumers
c)
secondary consumers
d)
tertiary consumers
49.
Which organisms allow all nutrients to be recycled within an ecosystem?
a)
fungi
b)
bacteria
c)
both fungi and bacteria
d)
neither fungi or bactera
50.
What is the primary source of energy for all living organisms?
a)
sunlight
b)
water
c)
chemicals like methane
d)
nitrogen
51.
Light, rainfall, and temperature are all examples of
a)
biotic factors
b)
abiotic factors
c)
biotic potential
d)
biomass
52.
When plant and animal matter builds up on the earth and then decays it can eventually become
a)
runoff
b)
condensation
c)
combustion
d)
fossil fuels
53.
____________ is the build up of toxins in the tissue of a living organism
a)
bioaccumulation
b)
biomagnification
c)
biogeochemistry
d)
biochemistry
54.
The increasing amount of toxins found at higher levels of a food chain is called
a)
bioaccumulation
b)
biomagnification
c)
biogeochemistry
d)
biochemistry
55.
Which trophic levels of a food chain would contain the least amount of toxins?
a)
producer
b)
primary consumer
c)
secondary consumer
d)
tertiary consumer
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