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Biology
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Final Exam Review Questions
Describe the flow of energy in the food chain
What is the difference between habitat and niche?
What happens to the mass at each stage of this
food pyramid?
What is the difference between biotic and abiotic?
What is the difference between aerobic and
anaerobic?
Describe the “competition” in the graph above.
State a plausible explanation for the above graph
COMMUNITY INTERACTIONS
Describe these types of
interactions:
•
Competition
•
Predation
•
Symbiosis
Explain: Mutualism

See next slide for answer

Mutualism means
that both species
benefit, like the
clownfish and the
anemone
Describe commensalism

What’s happening?
commensalism
-
beneficial to one
species, other
remains neutral
(not helped nor
harmed)
Ex. Epiphytes,
ramora
What is parasitism?

Analyze this picture
parasitism



Parasitism:
One species harms (parasite)
another species (host) to
benefit themselves
Eg. Parasitic isopod and fish
ECOLOGICAL SUCCESSION

What is ecological
succession?
ECOLOGICAL SUCCESSION

The gradual changes
in an ecosystem after
a disturbance occurs
Explain the differences
Producers
 Secondary
consumers
 Decomposers
 Primary
consumers

What is a non-native species?

Why do non-native
species often disrupt
their ecosystem?
ECOLOGICAL SUCCESSION
Gradual change in living communities that follows a
disturbance
Describe these 2 Types of
succession:
•
Primary succession:
•
Secondary succession:
ECOLOGICAL SUCCESSION
Gradual change in living communities that follows a disturbance
Types of succession:
•
Primary succession: occurs
on surfaces where no soil
exists
pioneer species to climax
community
•
Secondary succession:
follows a disturbance that
destroys a community
without destroying the soil