Download ECOLOGY A. Ecology Ecology comes from the Greek words ______

ECOLOGY
A. Ecology
 Ecology comes from the Greek words _____________ (place where one
lives) and ____________(study of).
 Ecology means____________________________________.
 Ecology specifically means: __________________________
_______________________________________________
B. Key Theme of Ecology
 ___________________ – No organism is isolated.
 An organism’s _____________ ____________ ______ the
__________________ with other organisms ____________
_______________________________________________
_______________________________________________
C. Two Parts of the Environment
 __________ = all living things that affect ______________
______________________________________________
 _____________ = nonliving factors (water, soil, etc.)
 A pond has ________, algae, insects, bacteria, and ________ (biotic).
It also has nonliving components such as __________, carbon dioxide,
__________, soil, and _________ (abiotic).
D. Levels of Environmental Organization (from complex to simple)



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E. What is a Biosphere?
 The _______________, most ___________________ level of
______________.
 _____ ____________ are found within the biosphere.
F. What is a Biome?
 An area or region of the world that has _______________________.
 For example: specific types of plants like in the _________________
______________________________.
 A rainforest __________________________.
G. What is an Ecosystem?
 An ecosystem includes all ________ organisms _____ all ____________
___________ in one particular place.
 Two types of Ecosystems
o ___________________ - Land
o ___________________- Water
H. What is a Community?
 ____ the __________ ____________ living in one area. Example: All the
______, turtles, ________, algae, and bacteria ___________________.
I. What is a Population?
 Includes all the members of a _________ ________ that live in one
place. Example: A school of fish
 Populations cannot grow nonstop because the _____________ contains
limited resources known as ________ ___________.
 The largest population that an environment can support is known as the
_________ ___________.
J. What is an Organism?
 An ____________ is the _________, least complicated level of
organization in our environment. Examples: A ______ _______ or a
single individual.
K. Two main types of Species Interactions
 __________________ (Predator and Prey)
 __________________ (Parasitism, Mutualism, Commensalism)
L. Predator and Prey
 The organism that is eaten is the _____________.
 The organism that does the eating is the _______________.
M. Symbiotic Relationships
 ________________ - one organism _____________________________
_________________________________________________________
 ________________ - both ___________________________________
 ________________ - one organism _____________________________
_________________________________________________________
N. Parasitism
 The tapeworm attaches to ____________________ and _____________
our digestive nutrients. The worm benefits while the person is harmed.

O. Mutualism
 The sea anemone and the clownfish
 The fish uses the anemone for protection, _________________, the fish
__________________________________to the anemone and lures fish
into the anemone’s tentacles.

P. Commensalism
 The egret rides on the buffalo’s back feeding on small animals such as
__________________________ that are forced out of hiding as the
buffalo moves through the grass.
