ecology - commack schools 19.pdf · ecology 10/24/19. ecology •the study of organisms and the...

Ecology

10/24/19

Ecology•The study of organisms and the interactions they have with thier environment

•Organisms in an environment are interdependent on one another

Biosphere

•The biosphere is the portion of the earth that supports life.

•Bio - life

•Sphere - geometric shape

1. Biotic - living factors

2. Abiotic – nonliving

factors

Environmental Factors

Biotic (LIVING)

Abiotic (NONLIVING)

If a plant is taken from a

wet swampy area and

grown in a dessert what

abiotic factors will cause

the plant to die?

Try to put the following

words in order from

simplest to most complex.

•Population

•Organism

•Ecosystem

•Biome

•Biosphere

•Biologic Community

Levels of Organization1. Organism

2. Population

3. Biologic Community

4. Ecosystem

5. Biome

6. Biosphere

1. Organism

•The lowest level of

organization is the individual

organism. Example: a

single fish or one student

Organism

2. Population

•A group of the same type

of organisms (species)

•They share the same

geographic location at

the same time

Population

3. Biologic Community• Interacting populations of

different organism (many types

of species)

• Share the same geographic

location

• All the populations of

organisms in a community

4. Ecosystem

• Is a biologic community

and all the abiotic factors

that affect it.

Ecosystem

Why is this a

picture of an

ecosystem

and not a

community?

Answer

The picture has living (biotic)

and nonliving (abiotic) factors

in it

5. Biome

•A large group of

ecosystems that share

the same type of climate

and have similar types of

communities

6. Biosphere

•All the biomes on earth

combined make up our

biosphere

Ecosystem Interactions

•Communities of organisms increase their chances of survival by using available resources in different ways.