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WorksheetsEcology
Total questions: 39
Worksheet time: 54mins
Name
Class
Date
1.
An individual belonging to a specific species
a)
Biotic
b)
Community
c)
Organism
d)
Reptile
2.
The living part of an ecosystem
a)
Biotic
b)
Abiotic
c)
Mother Earth
d)
Flowers
3.
The non-living part of an ecosystem
a)
Ocean
b)
Lava Flow
c)
Birds
d)
Abiotic
4.
Consumer that eats plants
a)
heterotroph
b)
herbivore
c)
producer
d)
community
5.
Series of steps in which organisms transfer energy by eating and being eaten
a)
foodweb
b)
consumer
c)
food chain
d)
omnivore
6.
What does fungi do to dead plants and animals?
a)
Leave them there
b)
Decompose them
c)
Wait for other animals to eat them
d)
Move away
7.
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.
8.
In the energy pyramid here, how much of the energy in the producers gets passed to the herbivores?
a)
10%
b)
20%
c)
80%
d)
90%
9.
A carbon "sink" is best described as:
a)
a reservoir that readily releases carbon to another reservoir
b)
a carbon reservoir that stores more carbon that it is releasing
c)
something that causes carbon to leak out to the atmosphere
d)
a carbon reservoir that is releasing more carbon than it is taking in
10.
In the food web shown, the snail would be considered...
a)
primary consumer
b)
secondary consumer
c)
tertiary consumer
d)
producer
11.
Green plants are
a)
producers
b)
consumers
c)
herbivores
d)
omnivores
12.
The diagram below shows the cycling of nutrients in an ecosystem.
The removal of which of the following groups would cause an immediate decrease in the amount of energy flowing through the system?
The removal of which of the following groups would cause an immediate decrease in the amount of energy flowing through the system?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Inorganic nutrients
13.
which symbiosis is this
a)
parasitism
b)
mutualism
c)
commensalism
d)
nonalism
14.
symbiotic relationship in which both organisms benefit
a)
competition
b)
Mutualism
c)
nitrogen fixation
d)
energy pyramid
15.
The energy at each trophic level in the pryamid of energy decreases by a factor of ____.
a)
10
b)
1
c)
100
d)
2
16.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a habitat.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms.
d)
How carnivores get their food.
17.
diagram that shows the energy available to each trophic level in an ecosystem; 10% is passed on to upper levels, the rest is lost as heat
a)
succession
b)
cellular respiration
c)
energy pyramid
d)
biochemical cycle
18.
a relationship between two in which one species, the predator, feeds on the other species, the prey
a)
chemosynthesis
b)
predation
c)
cellular respiration
d)
commensalism
19.
Natural disasters such as flooding and tornadoes are linked to ________________.
a)
primary
b)
secondary
c)
old field
d)
ecosystem
20.
How do lichens contribute to primary succession?
a)
Lichens decompose organic matter from animals and plants
b)
Lichens begin to break down rock to form soil
c)
Lichens are nitrogen fixing bacteria
d)
Lichens convert carbohydrates into fossil fuels.
21.
What is formed during primary succession that doesn't need to be formed during secondary succession?
a)
pioneer species
b)
soil
c)
climax community
d)
lichens
22.
What type of succession is shown going from figure A to figure B?
a)
primary succession
b)
eutrophication
c)
secondary succession
d)
intermediate
23.
After a forest fire, an ecosystem would start regrowth through -
a)
primary succession
b)
secondary succession
c)
climax community
d)
limiting factors
24.
succession that occurs in an area with no soil
a)
ecological succession
b)
primary succession
c)
secondary succession
d)
pioneer speciles
25.
succession that occurs in an area where soil is already present
a)
ecological succession
b)
primary succession
c)
secondary succession
d)
pioneer speciles
26.
starts with bare rock followed by lichen
a)
primary succession
b)
secondary succession
c)
both types of succession
27.
this type of succession occurs after a forest fire
a)
primary succession
b)
secondary succession
c)
both
28.
Which compound does NOT contain carbon atoms?
a)
carbon dioxide
b)
ammonium
c)
calcium carbonate
d)
methane
29.
Which one of these does not add CO2 to the atmosphere?
a)
cooking with gas
b)
planting trees
c)
burning wood
d)
riding in a bus
30.
All of the carbon in existence is continually recycled in the carbon cycle
a)
True
b)
False
31.
What converts nitrogen gas into a usable form for plants and animals?
a)
bacteria
b)
rain
c)
fungi
d)
car exhaust
32.
Organisms that need nitrogen to survive.
a)
only plants
b)
only animals
c)
only bacteria
d)
all living things
33.
How is nitrogen "fixed" into a usable form for plants?
a)
Through action of bacteria only
b)
Through lightning only
c)
Through action of bacteria and lightning
d)
Through photosynthesis
34.
Gas that makes up 78% of our atmosphere.
a)
Oxygen
b)
Nitrogen
c)
Hydrogen
d)
Carbon Dioxide
35.
A decomposer?
a)
Eats dead plants or animals and breaks down to put nutrients in the soil
b)
Eats plants or other animals for food
c)
Makes its own food
d)
Machine that gathers trash
36.
a)
Producer
b)
Consumer
c)
Decomposer
37.
What is indicated by the diagram?
a)
Food web
b)
Food chain
c)
Food map
d)
Food menu
38.
Which of these best explains why predators need plants, such as grass, in their ecosystem?
a)
Plants are a large part of their diets
b)
Plants provide safety for predators
c)
Plants break down the organisms that the predators eat
d)
Plants provide food for their animals that the predators eat
39.
An organism that eats both plants and animals is known as a(n)
a)
Carnivore
b)
Omnivore
c)
Herbivore
d)
Decomposer
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