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WorksheetsInteractions Within Ecosystems
Total questions: 26
Worksheet time: 14mins
Name
Class
Date
1.
The air we breath is made mostly of _______
a)
carbon dioxide
b)
oxygen
c)
nitrogen
d)
hydrogen
2.
_______ eat herbivores, omnivores and carnivores
a)
carnivores
b)
omnivores
c)
herbivores
d)
detritivores
3.
____________ is the process of a producer making food from chemicals.
a)
photosynthesis
b)
farming
c)
chemosynthesis
4.
Nitrogen gas can be used by plants and animals.
a)
true
b)
false
5.
A population of animals is made up of all of the animals of the same species in an ecosystem.
a)
true
b)
false
6.
Which is NOT one of the 5 Rs for helping the environment?
a)
Restore
b)
Rethink
c)
Repair
d)
Reuse
7.
A butterfly pollinates a flower while getting food for itself. What type of interaction is this?
a)
commensalism
b)
mutualism
c)
parasitism
d)
predation
8.
Which of the following eats consumers?
a)
carnivore
b)
herbivore
c)
bacteria
d)
fungi
9.
What can happen if there is overpopulation?
a)
not enough food for that species
b)
not enough food for other species
c)
some of the species will move away
d)
all of the above
10.
What law states, "Matter cannot be created or destroyed, but it can change form."
a)
law of gravity
b)
law of inertia
c)
law of conservation of matter
11.
This is a cause of damage to the ozone layer.
a)
burning fossil fuels
b)
using CFCs in refrigerators
c)
using chemical fertilizers
12.
In photosynthesis, light energy becomes _____ energy
a)
soil life
b)
chemical
c)
mechanical
d)
pyramid
13.
What causes algal blooms in lakes and streams?
a)
burning fossil fuels
b)
using CFCs
c)
using chemical fertilizers on farms
14.
What organism converts nitrogen to a form that is able to be used by producers?
a)
sheep
b)
plants
c)
beetles
d)
bacteria
15.
What is the waste product of cellular respiration?
a)
releases oxygen
b)
releases carbon dioxide
c)
removes carbon dioxide
d)
creates oxygen
16.
What percentage of the Earth's atmosphere is made up of Nitrogen gas?
a)
65%
b)
7.8%
c)
87%
d)
78%
17.
A model of a feeding relationship is called a _______
a)
protein building
b)
food map
c)
food web
d)
sugar molecule
18.
An area is considered overpopulated if a species exceeds the carrying capacity.
a)
True
b)
False
19.
If 2 consumers need the meat from a dead animal there is ______ for that food.
a)
competition
b)
commensalism
c)
cooperation
20.
Carbon dioxide is used by plants for what process?
a)
cellular respiration
b)
breathing
c)
photosynthesis
21.
Overlapping food chains make ______
a)
food map
b)
competition
c)
food chain
d)
food web
22.
Cyanobacteria were responsible for increasing the amount of _____ in the atmosphere.
a)
oxygen
b)
pollution
c)
nitrogen
d)
carbon dioxide
23.
This is a diagram of what cycle?
a)
perspiration
b)
water
c)
food
d)
runoff
24.
This picture is a diagram of what cycle?
a)
oxygen carbon
b)
water
c)
nitrogen
25.
What is a factor that can cause the carrying capacity to change in an ecosystem?
a)
flood
b)
drought
c)
another species
d)
all of the above
26.
What type of oganisms break down a dead organism and return the energy to the ecosystem?
a)
scavenger
b)
omnivore
c)
detritivore
d)
herbivore
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