Download Living Things and the Environment

Living Things and
the Environment
Key Words
Habitat
Biotic Factors
Abiotic Factors
Populations
Species
Community
Single Organism
Ecology
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 Example
Single 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 nonliving 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 ecosystem
Affect living things
Abiotic Factors Are:
Water
Sunlight
Oxygen
Temperature
Soil
Populations
A 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 City
all the daises in a field
Differences
You 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.
Communities
Ecosystems contain more than one type of
organism
All 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:
Next:
Then:
Finally:
living organism
Population of species
Populations of different species
live together in community
The community and the abiotic
factors together in ecosystem
Illustrate
Demonstrate Your Understanding
Use the paper plate given to
Create Levels of organization
Based upon the illustration.