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heads

A head is the part of an organism which usually includes the ears, brain, forehead, cheeks, chin, eyes, nose, and mouth, each of which aid in various sensory functions such as sight, hearing, smell, and taste, respectively. Some very simple animals may not have a head, but many bilaterally symmetric forms do, regardless of size.
Heads develop in animals by an evolutionary trend known as cephalization. In bilaterally symmetrical animals, nervous tissues concentrate at the anterior region, forming structures responsible for information processing. Through biological evolution, sense organs and feeding structures also concentrate into the anterior region; these collectively form the head.

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  1. S

    honeywell 2 port valves heads

    honeywell 2 port motorised valves replacement heads available about 30 of them ! I removed them my self on the contract work I was doing for the council and they are all working ! £15.00 +£3.00 pp
  2. V

    heads up

    just a quicky to my fellow plumbers 35 trafalgar street carcroft doncaster if you get called to a job here this is the house that scumlord owns where i fitted boiler keep on your minds lads
  3. B

    any ideas?

    Hi everyone, went to a customer yesterday with some leaking sink mixer taps, they were bought from homebase and are mono x head mixers. They were leaking from the body so prob just need new washer or re seating, now this is normally straight forward as you will know but removing the heads...
  4. R

    Tap Problem.....

    Ok so I've finally got here after after a slight technical hitch with my comp! graphics card gave up luckily I call myself a IT technician so it was'nt to painful:) Anyway back on topic my mixer tap in the kitchen is quite old, the hot side is working fine but the cold and gradually got worse...
  5. P

    How you guys doing for work? Keeping your heads above water?

    As above really. I been self employed since last July and had been flat out since. Worked for a firm previously for 8 years and was lucky to have a few contacts. Was subbing as an installer doing 1 job per week for British Gas but their work has thinned out a bit so they look after their own...
  6. turnpin

    Gasman heads for 4000 posts

    Just read a post and noticed Gasman was 2 away from 4000th post by the time I post this he may well be past that number:D great stuff as usual keep em coming :)regards turnpin
  7. W

    Wanted - Cast wheel heads for 2" gate valve.

    Does anyone have any gate valve wheels which take a 3/8" square shank. I believe 1 1/2 and 2" standard brass gate valve wheels will be correct. 2 are needed for a yacht restoration project.
  8. B

    experienced heads please

    whats the craic, scale inhibitors ?????????? the issue is limescale deposits. has anyone ever installed a specific type? what was the result. do they work and how effective. really appreciate some advice on this one. thanks lads
    • buffy27
    • Thread
    • cheap combi connect electronic experienced filter heads kitchen mains please remove system tap waste water water tap work
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
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