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Ecology

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Ecology WHAT IS ECOLOGY? Ecology- the scientific study of interactions between organisms and their environments, focusing on energy transfer Ecology is a science of ... – PowerPoint PPT presentation

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Title: Ecology


1
Ecology
2
WHAT IS ECOLOGY?
  • Ecology- the scientific study of interactions
    between organisms and their environments,
    focusing on energy transfer
  • Ecology is a science of relationships

3
WHAT DO YOU MEAN BY ENVIRONMENT?
  • The environment is made up of two factors
  • Biotic factors- all living organisms inhabiting
    the Earth
  • Abiotic factors- nonliving parts of the
    environment (i.e. temperature, soil, light,
    moisture, air currents)

4
Biosphere
Biome
Ecosystem
Community
Population
Organism
5
  • Organism - any unicellular or multicellular form
    exhibiting all of the characteristics of life, an
    individual.
  • The lowest level of organization

6
  • POPULATION
  • a group of organisms of one species living in
    the same place at the same time that interbreed
  • Produce fertile offspring
  • Compete with each other for resources (food,
    mates, shelter, etc.)

7
Community - several interacting populations that
inhabit a common environment and are
interdependent.
8
Ecosystem - populations in a community and the
abiotic factors with which they interact (ex.
marine, terrestrial)
9
Biome a group of ecosystems that share similar
climates and typical organisms
10
  • Biosphere - life supporting portions of Earth
    composed of air, land, fresh water, and salt
    water.
  • The highest level of organization

11
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