seeds and survival

• what physical and chemical properties allows seeds to survive on land(there are 4)

  the testa, endosperm and cotyledons , dormancy and low water content
• what advantages(adaptations) does the testa give plants that live on land

  provide chemical resistance aswell as phsycial protection
• what does the testa providing chemical resistance mean for the seed


  it can survive adverse chemical conditions
• what are the function of the endosperm/cotyledons that allow seeds to survive onland

  they provide a supply of nutrients until photosynthesis can occur
• what properties will a dormant seed have

  low metabolic rate
• what does a low metabolic rate mean about seeds on land

  it means they can survive over winter in time for the higher temperatures in summer
• how does a seed having a low water content help it surive

  it helps them survive dry conditions
• Why is seed dispersal important?

  reduces competition with the parent plant and other offspring , it also allows for the colonisation of new areas
• why are fruit important in seed dispersal


  some fruit that contain seeds will be eaten by animals leading to them being passed in another area