Model Ecosystem Post Lab
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by Kathy Egbert
| 12 Questions
1
1
The ultimate source of energy for most ecosystems is
A carbon
B oxygen
C sunlight
D water
2
1
Organisms that directly use energy from the sun to make their own food are called
A Autotrophs
B Heterotrophs
C Carnivores
D Decomposers
3
1
Which of the following illustrates the correct ordering of trophic levels
A Decomposers --> Carnivores--> Autotrophs--> Herbivores
B Herbivores--> Autotrophs-->Carnivores-->Decomposers
C Autotrophs-->Herbivores-->Carnivores-->Decomposers
D None of the above
4
1
Within an ecosystem:
A Energy flows in one direction only and nutrients are recycled
B Energy is recycled and nutrients flow in one direction only
C Energy and nutrients flow in one direction only
D Energy and nutrients are both recycled
5
1
The efficiency of energy transfer from a lower trophic level to the next higher level is roughly:
A 1%
B 5%
C 10%
D 80%
6
1
In aquatic ecosystems, biomass is least at which trophic level
A Autotrophs
B Herbivores
C Carnivores
7
1
You are in an area where there are squid, seals, and penguins. You are most likely in which ecosystems?
A Deciduous Forest
B Hot Desert
C Antarctic Ocean Shore
D Grassland
8
1
You find yourself in an area where there are snakes, hawks, and coyotes. Based upon these animal populations you are most likely in which ecosystem?
A Deciduous Forest
B Hot Desert
C Grassland
D You cannot tell from this information
9
1
You are in a area where the ground is littered with what appear to be dry, dead leaves. You are most likely in which ecosystym
A Deciduous forest
B Hot Desert
C Grassland
D You cannot tell from this information
10
1
This zone has the greatest concentration of plankton in a freshwater lake ecosystem:
A Profundal
B Littoral
C Limnetic
11
0
Last Name, First Name
12
0
Class Period
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