• Question: If there was no food or water what chemical substances would humans need in their intake???

    Asked by Little M to Ahmed, Francesca, George, James, Nitheen on 17 Nov 2014.
    • Photo: Francesca Paradisi

      Francesca Paradisi answered on 17 Nov 2014:

      Apparently dogs can see some colours, there was an article published about this last year, very interesting, i’m posting the link here if you want to have a read http://www.dailymail.co.uk/sciencetech/article-2374872/Dogs-CAN-colour-Scientists-dispel-myth-canines-black-white.html it says that while dogs have predominately 2 types of receptors in the eyes, they can have some very limited recognition of colours too!

    • Photo: James Sullivan

      James Sullivan answered on 17 Nov 2014:

      H Little M –

      If there was no food or water we’d die.

      We can use an entire range of things as food – but we can’t digest grass or wood (or anything based on cellulose) at all.

      without water we’d die in 2-3 days (some people have made it to 8 days), but we can go without food for a lot longer – as we begin to use our fat and then our protein as food once the glucose is gone from our system.

    • Photo: Ahmed Osman

      Ahmed Osman answered on 17 Nov 2014:

      we can intake D nutrients