Saturday, 30 March 2013

4.5 understand the concepts of food chains, food webs, pyramids of number, pyramids of biomass and pyramids of energy transfer



sciencebitz.com

A food chain shows the transfer of energy up the food chain beginning with the producers then the primary consumers and so forth.
king.portlandsschool.org

A food web links several animals within a habitat showing what consumes what and is consumed by what.
BBC.co.uk
A pyramid of number progresses through the trophic levels of a food chain representing the number of each species by the area of the pyramid block.

BBC.co.uk
A pyramid of biomass represents the mass of each consumer (and producer) by the area of a pyramid block.

diagram representing energy transfer in a food chain
scienceaid.net
A pyramid of energy shows the transfer of energy through the food chain.

8 comments:

  1. The Biology Syllabus has changed…

    Here is a New blog for the 2017 Syllabus:

    http://igcse-biology-2017.blogspot.hk

    ReplyDelete
    Replies
    1. This comment has been removed by the author.

      Delete
    2. This mike stank really out here asking people to go to his link

      Delete
  2. more at

    http://igcse-biology-notes.blogspot.hk/2017/06/45-understand-concepts-of-food-chains.html

    ReplyDelete