Label A-F and describe the levels of ecological organization. F E D

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Label A-F and describe the levels of ecological organization. F E D
1. Label A-F and describe the levels of ecological organization.
F
E
D
C
B
A
2. Describe characteristic biotic and abiotic components of the aquatic and
terrestrial ecosystems shown below (list 4 biotic and 4 abiotic factors
shown below.)
Ecosystems
Biotic:
Abiotic:
3. a. Use the illustrations below to help you describe how energy flows
through an ecosystem using the terms producer, 1st level consumer, 2nd
level consumer, etc., and apex predator.
b. Use the illustrations below to help you describe how energy flows
through an ecosystem in terms of energy and the percentage of energy
that is passed up the trophic levels.
c. Use the illustrations below to help you describe how nutrients flow
through an ecosystem.
d. Label each either as food chain, food web, food pyramid.
d. ______________________
d. _______________________
d. _____________________
4. Describe biotic interactions in an ecosystem by giving an example of each
term and describe how those organisms interact.
a. Competition-
b. Predation-
c.
Mutualism-
d.
Parasitism-
e.
Commensalism-
5. Describe how matter recycles through an ecosystem.
water cycle
carbon cycle
nitrogen cycle
6. Describe how ecosystems change in response to the following natural and
human disturbances:
climate change-
introduction of nonnative species (exotic species)-
pollution-
fires-
7. a. Identify each term as a density-dependent limiting factor or densityindependent limiting factor.
Competition: _____________________________
Parasitism and disease: _____________________
Drought: ________________________________
b. Define what each term means.
Competition:
Parasitism and disease:
Drought:
c. Describe how the limiting factor will effect the population dynamic.
Competition:
Parasitism and disease:
Drought:
d. Describe what effect the term may have on potential species extinction.
Competition:
Parasitism and disease:
Drought:

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