7. BIOTIC/ABIOTIC
Biotic – means all the LIVING things in an
ecosytem.
Abiotic –means all the NON-LIVING things
in an ecosystem. The prefix A- in front of a
word turns its meaning into the opposite.
12. AUTOTROPHS (AKA PRODUCERS)
Autotrophs, also
known as
Producers, can make
their own food from
sunlight.
Producers are
plants, algae, and
some kinds of
bacteria
20. SYMBIOSIS
From the Greek word meaning “living together”
and can be used to describe any association
between two organisms living in close
association with each other.
21. COMMENSALISM
Individuals of one species benefit, while
individuals of the other species do not
benefit and are not harmed
22. MUTUALISM
an association in which both organisms
benefit
23. PARASITISM
one organism [the parasite] benefits, and
the other [the host] is adversely affected
[weakened, sickened, damaged etc].
26. HABITAT
the place or environment where a plant or
animal naturally or normally lives and
grows.
27. NICHE
the status of an organism within its environment and community
(affecting its survival as a species). No two species can occupy the
same niche at the same time for an extended period
28. LIMITING FACTORS
Not enough
Food (prey)
Water
Shelter
Too many Predators
30. ENVIRONMENTAL BENEFIT/RISK
Equilibrium = balance.
Human interference
often knocks
ecosystems in the
environment out of
balance.
We must balance the
benefits and risks of
any action we take …
otherwise known as
trade-offs
31. WAYS IN WHICH HUMANS CAUSE IMBALANCE
Introduced species
Using non-renewable fuel sources (fossil
fuels)
Damaging/destroying habitat
Polluting the environment with
trash, chemicals, and gas emissions
Overhunting
Overgrazing
33. FOSSIL FUELS
• Oil
(gasoline)
• Coal
• Natural Gas
• Fossil fuels come from ancient deposits of fossilized
plants
• NON-renewable, when they are gone … they gone
forever