Adaptation to environment'

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Adaptationtoenvironment.
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Adaptation to environment

• Lesson objectives
• To describe how adaptations allow animals and
  plants to survive in particular environments.

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Adaptation to environment

• Adaptation is the development of special
  characteristics by plants or animals to suit a
  particular environment.
• Animals and plants evolve to suit their
  environment to increase their chance of survival.

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Adaptation to environment

• Mammals are adapted in various ways
• They have hairy skin to keep them warm. Hair
  traps a layer of air, which insulates the body,
  reducing heat loss.
• The hair may also be coloured to give camouflage
  from predators or prey.
• If they live in a cold environment they may have
  small external ears to reduce heat loss by
  radiation. In warm climates, ear size is often
  larger to increase radiated heat loss.

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Adaptation to environment

• Mammals are adapted in various ways
• Give birth to a small number of well developed
  young, which they feed on milk. This increases
  the chance of survival.
• Lungs which have a large surface area for gas
  exchange.
• Can maintain a high body temperature, allowing
  survival in changing environments.

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Adaptation to environment

• Fish are adapted in various ways
• Gills to breathe. Gills allow fish to remove
  oxygen from the water and to release carbo
  dioxide into the water from the blood.
• Streamlined body.
• mucous-covered scaly skin.
• Overlapping scales.
• These all help reduce drag (friction) as the fish
  swims.
• Lay many eggs into the water. This compensates
  for heavy losses to predators.

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Adaptation to environment

• Plants are adapted in various ways
• Extensive root systems to absorb water from deep
  underground.
• Reduced leaf size, often merely spikes, to reduce
  water loss due to transpiration.
• Waxy cuticle on their leaves. This also helps
  reduce water loss through transpiration.

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Adaptation to environment

• How are the following species adapted to their
  environment.
• Think about
• the environment they live.
• What features allow them to survive in that
  environment.

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Adaptation to environment

• Environment Extreme cold, snow and ice.
• Adaptations
• Feed their young (better chance of survival)
• Small ears (reduce heat loss)
• Thick layer of fur (warmth)
• White fur (camouflage) Wide feet (for support on
  soft snow)
• Sharp teeth (eat prey)

Polar Bear
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Adaptation to environment

• Environment desert and arid (dry).
• Adaptations
• Can survive up to 8 days without water.
• Broad, soft feet (support on soft sand)
• Humps contain fat (energy store)
• Diet (thorny plants, seeds, dry leaves, bones)
• Hair (short, thick and dense protects skin
  from sunburn)
• Long eyelashes (protect eyes from sand)

Camel
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Adaptation to environment
Fish

• Environment water Adaptations
• Gills (remove oxygen from water and release
  carbon dioxide from the blood)
• Streamlined shape (reduces drag when swimming)
• Mucus covered scales (reduces drag when
  swimming)
• Large number eggs produced (increase survival as
  many eaten by predators.

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Adaptation to environment
How are Flounders specially adapted to their
environment.

• Environment water.
• Adaptations
• Flat (aid ability to hide from predators)
• Colour (camouflage)

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Adaptation to environment
How are Sharks specially adapted to their
environment.

• Environment water.
• Adaptations
• Sharp teeth (to rip prey apart).
• Can survive for a long time without food.

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Adaptation to environment
Cactus

• Environment desert and arid (dry).
• Adaptations
• Small leaves, spikes (to reduce water loss
  through transpiration).
• Waxy cuticle on leaves (to reduce water loss
  through transpiration).
• Extensive roots (to absorb water from deep
  underground).

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Adaptation to environment
How are weeds specially adapted to their
environment.

• Environment Wet, pathways.
• Adaptations
• Strong roots (to prevent removal)
• Flat leaves (to prevent removal)

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Adaptation to environment

• The End.