Living Things and the Environment
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Transcript of Living Things and the Environment
Living Things and the Environment
Key Words
HabitatBiotic Factors
Abiotic FactorsPopulations
SpeciesCommunity
Single OrganismEcology
Habitats
Organisms live in a specific place within an ecosystem.
An organism obtains food, water, shelter, and other things it needs to live, grow and reproduce
from its surroundings.
This place is known as a habitat.
Habitat ExampleSingle ecosystems may contain many habitats.
In a forest ecosystem, mushrooms grow in the damp soil, rabbits live on the forest floor, and termites live under the bark of tree trunks
Organisms live in different habitats within the ecosystem.
Biotic Factors
Organism interacts with both the living an non-living things in its environment.
The living parts of an ecosystem are called biotic factors.
Grass, plants, hawks, eagles, worms, fungi, bacteria – biotic factors
Abiotic Factor
Non-living parts of an ecosystemAffect living things
Abiotic Factors Are:Water
SunlightOxygen
TemperatureSoil
PopulationsA species is a group of organisms that are physically similar and can reproduce with each other to produce fertile offspring.
All species within a particular area are referred to as a population.
Example:
All the pigeons in New York Cityall the daises in a field
DifferencesYou can not use all the trees in a forest
there are different species of trees
Areas for population can be as small as a single blade of grass to as big as the entire planet.
Populations can move from place to place. Blue fin whales will move to different parts of the ocean.
CommunitiesEcosystems contain more than one
type of organismAll the different populations that live
together in an area make up a community
To be considered a community the organisms must live together and
interact with each other.They may interact by using the same
types of shelter, food, or resources.
Level of Organization
Smallest unit: living organismNext: Population of speciesThen: Populations of different species
live together in communityFinally: The community and the abiotic
factors together in ecosystem
Illustrate
Demonstrate Your UnderstandingUse the paper plate given to Create Levels of organization Based upon the illustration.