❤I've been used to reserving myself. Only by doing this won't I get hurt when I'm leaving.❤
❤No matter what have happened and whether you are ready or not, every next moment is gonna be a brand new start.❤
❤Whatever you do, remember that you do it for yourself, then you will not complain.❤
❤If you get tired one day, you will see my smile as long as you turn around.❤

Wednesday, 12 October 2011

Unit 2 Life Processes

  • Humans take in air with more oxygen when they inhale and let out air with more carbon dioxide when they exhale.
  • Humans use lungs to breathe.
  • Humans excrete sweat and urine.
  • Humans get rid of their faeces through defecation.
  • Humans respond to stimuli to protect themselves from danger or for survival.

  • Humans reproduce by giving birth.
  • Avoid bad habits such as smoking, drinking alcohol or taking drugs.
  • Animals need to excrete and defecate to get rid of waste products to stay healthy.
  • Animals breathe through their breathing structures.
  • Different animals have different breathing structures.
  • Animals reproduce by laying eggs and giving birth.
  • Animals go through different stages in their life cycle.
  • Plants respond to light, water, touch and gravity.
  • The shoot of a plant grows towards sunlight. The root grows towards water and gravity.
  • Plants reproduce through seeds, spores, suckers, stem cutting, leaves and underground stem.   

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