ECOLOGY

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ECOLOGY
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Revisit Ecosystem

• 3 levels that make up an ecosystem
• Individual
• Population
• Community
• Composed of natural units of living (Biotic) and
  non-living (Abiotic) things that work together.
• Eg Marine, Aquatic, Desert, Rainforest, Tundra
  and many more

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• Ecosystem services are fundamental life-support
  services upon which human civilization depends,
  and can be either direct or indirect.
• Direct pollination, wood, erosion prevention
• Indirect considered climate moderation, nutrient
  cycles, detoxifying natural substances and many
  more.

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Revisit Ecosystem

• An ecosystem is a community of living and
  non-living things that work together.

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Trophic Relations

• Ecosystems are natural machines that change
  matter and energy in the area
• Trophic- from the Greek word FOOD
• Trophic relations the natural connections of
  food between living organisms
• i.e. The food chain

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Food Chain

• Producers
• Consumers
• Decomposers

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Species

• Living organisms that share similar
  characteristics belong to the same species.
• The characteristics that define a species are
• Common physical characteristics.
• Natural, viable and fertile reproduction.
• (able to breed among themselves, but are not able
• to breed with members of another species).

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Diversity of life forms
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The six kingdoms in biology
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Its all about adaptation!
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Adaptation

• An adaptation is a way an animal's body helps it
  survive, or live, in its environment
• Species must be adapted to their habitat if they
  are to survive.
• If a species cannot adapt it risks becoming
  extinct.

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Adaptation Evolution

• Each adaptation has been produced by evolution.
  This means that the adaptations have developed
  over many generations.

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Physical adaptation

• Animals depend on their physical features to help
  them obtain food, keep safe, build homes,
  withstand weather, and attract mates.
• These physical features are called physical
  adaptations. They makes it possible for the
  animal to live in a particular place and in a
  particular way.

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Examples of physical adaption

• Coat colour matched to the environment
• Looking like leaves

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Brainstorm some answers

• With a partner come up with 10 examples of
  physical adaptations seen in nature. State with
  your example why that particular physical
  features has helped the species survive. I will
  give you 15 minutes to write them down then I
  will randomly pick a few pairs to read out their
  answers.

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In class assignment

• Next class we will be looking at cells (animal
  vs. plant cells)
• Write down 10 things you know about cells
• (it can be anything related to cells)
• You can work with your partner, but everyone must
  submit their own copy of the assignment.