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paper two revision - Coggle Diagram

- - - - spikes to help catch some water and reduce the moisture loss.
      - no leaves to reduce water loss. and transpiration (sweat)
    - - small leaves so no water is lost by transpiration because the leaves have a smaller surface area.
      - tap roots - long roots 7-10 metres long that reach deep underground water sources.
      - spines instead of leaves, spines lose less water .
      - waxy skin to they have thick skin so they are not eaten, this also prevents water loss.
      - water storage can store water in their stems to they lose less water.
  - - - only comes out at night time to keep cool.
      - doesn't drink but absorbs moisture from small bugs.
      - its got an exoskeleton (outside skeleton) so it cannot be crushed. m
      - avoids all sunlight to conserve moisture
      - burrows in the sand so it can prey on bugs.
      - slows its metabolism down so it reduces the amount of oxygen needed and it can live of two bugs a year.
    - - two sets of eyelashes so the sand cannot get into their eyes.
      - thick eyebrows so that their eyes are protected
      - they can close their nostrils to keep the sand out
      - thick fur to keep them warm at night
      - sand coloured to reflect the sun
      - large feet so they wont sink in the sand
      - they can drink 140 litres at one go in 4 minutes. to store it up
      - large hump to store fat
      - hairy ears to stop sand getting in
      - dense hard poo so they are not losing any moisture in it reducing moisture loss.
    - - large paws so it doesn't sink into the sand.
      - large ears so it can hear fro prey to eat.
      - large ears also to help cool it down its blood.
      - sand coloured to camouflage and keep it cool
      - small nose to stop the moisture loss.
      - padded feet with fur to protect it from the hot sand.