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Ecology ch 2 sect 2,3
Quiz- end of chapter
21
Science
8th Grade
01/13/2016

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Term
prey
Definition
This is what a predator eats.
Term
predator
Definition
This is what eats the prey.
Term
Because resources are limited.
Definition
Why does competition occur in nature?
Term
- herding; eating habits; general behavior changes
Definition
In what ways may a predator affect a prey population?
Term
- the higher the prey population, the higher the predator population; or the other way around
Definition
In what ways may a prey population affect a predator population?
Term
competition
Definition
A vine growing up the side of a tree is an example of this type of inter-species interaction?
Term
cooperative
Definition
Ants use a caste system and are able to communicate. Some are foragers and some are soldiers. These are examples of ______________________ behaviors.
Term
symbiosis
Definition
This word means, "living together".
Term
commensalism
Definition
The shark and the remora have a cooperative relationship in which one species benefits while the other is unharmed. What is that called?
Term
mutualistic
Definition
Bees and flowers have a _______________________ relationship.
Term
host
Definition
Parasites attack an organism that we call the _______________.
Term
the fish; jellyfish is little, slimy, translucent body guard
Definition
The fish and the jellyfish... Who benefits from this relationship, and how?
Term
limiting factor
Definition
A lack of nutrients in soil can be a ___________ _____________ to fish populations.
Term
carrying capacity
Definition
This is defined as the maximum number of individuals an ecosystem can support.
Term
biotic
Definition
Predation is a _____________ factor that limits prey populations.
Term
abiotic
Definition
Wind can be an _________________ factor that limits populations of certain plants.
Term
succession
Definition
This is defined as a gradual change in an ecosystem in which one biological community is gradually replaced by another.
Term
pioneer species
Definition
These are the first organisms to move into a barren environment.
Term
moss; lichen
Definition
These are two of the most common pioneer species on the planet.
Term
In secondary succession the soil is still in place, with plant roots and other organic matter.
Definition
What is the MAJOR DIFFERENCE between primary and secondary succession?
Term
Gardeners and defenders
Definition
What two roles can plants play in ecological succession?
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