of Organization BELLRINGER List five reasons why organisms would compete with each other Section 21 Summary pages 35 45 Ecology is the study of interactions that take place between organisms and their environment ID: 555496
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Slide1
Interactions & Levels of OrganizationSlide2
BELLRINGER:
List five reasons why organisms would compete with each other.Slide3
Section 2.1 Summary – pages 35 - 45
Ecology
is the study of interactions that take place between organisms and their environment.
(Where they live, what they eat, and what eats them)
SHARING THE WORLDSlide4
Section 2.1 Summary – pages 35 - 45
In Biology we study the portion of Earth that supports life-
Biosphere
It extends from high in the atmosphere to the bottom of the oceans.
BIOSPHERESlide5
Section 2.1 Summary – pages 35 - 45
Ecologists have organized the living world into levels
—
the organism by itself population community and ecosystem
LEVELS OF ORGANIZATIONSlide6
Section 2.1 Summary – pages 35 - 45
An individual living thing that is made of cells, uses energy, reproduces, responds, grows, and develops.
LEVELS OF ORGANIZATION
ORGANISM/INDIVIDUALSlide7
Section 2.1 Summary – pages 35 - 45
A
population
is a group of organisms, all of the same species, which interbreed and live in the same area at the same time.
LEVELS OF ORGANIZATION
POPULATIONSlide8
Section 2.1 Summary – pages 35 - 45
LEVELS OF ORGANIZATION
COMMUNITY
A
biological community
is made up of interacting populations in a certain area at a certain time.Slide9
Section 2.1 Summary – pages 35 - 45
A change in one population in a community may cause changes in the other populations.
COMMUNITYSlide10
Section 2.1 Summary – pages 35 - 45
Biological communities that interact with each other in a given area and with the
abiotic
components of that area.
LEVELS OF ORGANIZATION
ECOSYSTEMSlide11
Section 2.1 Summary – pages 35 - 45
Group
of ecosystems that have the same climate and similar dominant communities.
LEVELS OF ORGANIZATION
BIOMESlide12Slide13Slide14
Levels of Organization in Ecology
Individual → Species → Population → Community → Ecosystem → Biome → BiosphereSlide15
PredationThe capturing of prey as a means of maintaining life
One organism benefits
One organism is killedSlide16
Parasitism
One organism (the parasite) benefits
and the other (the host) is harmed, but is still aliveA tomato hornworm is covered with cocoons of pupating braconid wasps Slide17
Parasitism
Can be considered a special case of predation
Because the parasite needs the host to remain alive, it is typically advantageous for the parasite NOT to kill its host Slide18
Lamprey are ParasitesSlide19
MutualismMutualism is any relationship between two species of organisms that
benefits both species
. Slide20
Examples of Mutualism Pollination
Seed Dispersal
LichensSlide21
CommensalismRelationship between two species where one species benefits from the relationship and the
second species is unaffectedSlide22
Examples of CommensalismBarnicles and AnemonesSlide23
Interactions Summary
Type of
Interaction
Organism 1
Organism 2
Predation
Parasitism
Mutualism
Commensalism
Is Killed
Still Alive
“It’s Mutual.”