To Review

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To Review

• There are many interactions within a community
• PREDATION
• COMPETITION
• Symbiosis
• Is the close relationship between two species
  that benefits at least one species

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• Parasitism
• one organism lives on or inside another organism
  and harms it
• Parasite usually doesnt kill host, because then
  it will also die
• Mutualism
• - both species benefit
• - sometimes both are so dependent on each other
  that neither could live without each other
• Commensalism
• one species benefits and the other is neither
  helped nor harmed

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Adapting to the Environment

• each organism in a community has unique
• CHARACTERISTICS
• These unique characteristics affect the
  individuals ability to
• SURVIVE IN ITS ENVIRONMENT

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What makes an individual better suited to its
environment?

• Its ADAPTATIONS
• the behaviors and physical characteristics that
  allow organisms to live successfully in their
  environments

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Adaptation
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How do adaptations help an organism?

• It makes an organism more
• FIT
• This characteristic can then be passed on to its
  OFFSPRING and then the offspring will be better
• FIT for their environment
• and now can have more OFFSPRING with the
  same characteristics
• BUT THOSE THAT ARE NOT FIT
• ? DIE AND WONT HAVE OFFSPRING
• This is called NATURAL SELECTION

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NATURAL SELECTION

• The process by which characteristics that make an
  individual better suited to its environment
  become more common in a species

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Predator Adaptations

• Have adaptations that help them
• catch and kill their prey

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Q 1 Name at least 3 predator adaptations you see
in this clip.
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Prey Adaptations

• How do organisms avoid being killed by such
  effective predators?
• DEFENSE STRATEGIES
• Mimicry
• - when one organism imitates another organism
  for an advantage
• Pterophylla camellifolia
• Katydid

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• 2. Protective Covering
• - armor that protects the organism
• Pangolins

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• 3. Camouflage
• to blend in with surroundings
• Paradoxophyla palmata, a narrow-headed frog
  native to Madagascar. The frog's brown and yellow
  coloring, as well as its rough texture, allow it
  to blend in with the mud and tree trunks in its
  environment

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• 4. Warning Color
• used to warn predators not to eat it
• Mantellas
• By having the bright colors of the toxic species,
  the frogs are avoided by predators

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