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A. Ecology 1. ECOLOGY is the study of ______physical encironment_________________ and their

interactions with ___one another__________________________________


a. Both ____________(____________) and _____________(____________) factors

contribute to ____________________________________________

2. Life exists within the BIOSPHERE – ______________________________________________

______________________________________________________________________________


B. Levels of 1. The BIOSPHERE is organized into _________________________________________________

Organization

a. ORGANISM is an________________________________________________________

b. POPULATION is a________________________________________________________

c. COMMUNITY is two or more ______________________________________________

d. ECOSYSTEM is a ____________________ and all ___________________ that affect it

e. BIOME is a _____________________________________________________________

C. Organism 1. A HABITAT is where ___________________________________________________________

Interactions 2. A NICHE is what ______________________________________________________________

Ex: _______________________________________

3. ORGANISMS can interact in different ways.

a. PREDATION – The _____________________ pursues another organism for food,

which is the ______________

D. SYMBIOSIS 1. SYMBIOSIS is a _______________________________ between two or more _____________

______________________________________________________________________________

MUTUALISM – both organisms ____________________________________ (+ + )


COMMENSALISM – one organism ____________________, the other isn’t

________________________________________________________________ (+ 0)

PARASITISM – one organism _______________, the other is _______________ (+ -)

E. Flow of 1. Energy cycles through an ECOSYSTEM, beginning with __________________________, from

Energy ___________________________________________

_____________________________ make their own food.



____________________________ eat other organisms ( ______________________,

_______________________ and ________________________)

______________________________(___________) break down dead matter and

put _____________________________________________________________________







2. FOOD CHAINS show how ______________________________________________. Each step

is called a __________________________________________________________________

3. FOOD WEBS demonstrate the interaction of _______________________________________

______________________________________________________________________________

Only _____________ of the energy from each _______________________________

________________________________________________________________________