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head

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. M

    Got a thick head this morning?

    Well serves you right. As I don't drink I'm fit as a fiddle this morning and looking forward to getting out with the dogs for a couple of hours this morning. Happy new year everyone.
  2. R

    Negative or positive head shower pump?

    Hi guys, a little advice if you please! I got called to a job today to look at a shower pump that had died. It was a small salamander unit that looks as if one of the impeller housings has overheated and blistered, causing a leak. The shower pump is in the loft, above the shower head and about...
  3. Leo21

    Oh my head

    After drinking Doombar, Mohitos, and then moving on to to a single malt I can't remember the name of. I've got a right minting hangover. Anybody else in the hangover club. Mine on a scale of 1 to 10 is a 9. Anyone else? Or is it just me.
  4. hammers4spanner

    doing my head in

    Anyone on here know if or how you adjust the settings on sensor taps ?? getting hassled to bits over some and would like to know if you can actually adjust these stupid annoying taps
  5. R

    Negative Head Pump with small tanks - is it even possible?

    A customer living in a flat wants to be able to take a shower and therefore needs a negative head pump. SOME flow rate would make them happy, doesn't have to be very strong. However they have 2 small, crappy, plywood-insulated tanks located side by side in their cupboard (so an added benefit is...
  6. RGII79

    Ideal mini s24 pump head

    Does anyone know of a cheap replacement head that will suit or the price for the wilo one that in these
  7. B

    Fitting an 8" square headed fixed shower head to a 10.5kw Electric shower.

    High pressure area on the mains supply and we were wondering if the Triton 300i wireless would be able to deliver sufficient volume to supply the single mode triton fixed head. All advice appreciated. Cheers.
    • bigmondy
    • Thread
    • electric electric shower fitting fixed head shower shower head square
    • Replies: 21
    • Forum: Plumbing Jobs | The Job-board
  8. C

    Advice on getting a head in the game

    Hi all I'm starting college in september and I understand that there is no quick way of getting qualified but could anyone give a good web site or soemthing so i can get abit of a head start Cheers
  9. B

    salamandar negitive head

    help please ive recently fitted a esp 50 cv twin, does anyone know why the n and one of the 1,2or 3 come on and the pump stops. thanks james
  10. E

    Bath Taps And Shower Head Within Bath - How To Replace Hose?

    A customer has a Carronite Torino bath (that I have narrowed it down to having searched about). The taps and shower hose are on the rear side of the bath, with the front panel and the side shelves (not visible on the picture) tiled. The shower hose has split and so leaks water downstairs. Is...
  11. J

    Tap head no retaining screw

    I am trying to remove a tap head to inspect it and repair a drip. There is no retaining screw in the top of the upper cover, it all seems to be a single piece. I have scewed it to the biggest opening position, but it stops ther. I have tried to prise it off, but no joy. I have checked my 18...
  12. R

    Reviving a Tap: Stubborn Tap Head

    Hi I have trouble with reviving a leaky tap. the tap head just wouldn't come off with an adjustable wrench. (It slips off the wrench.) Would a Ring Spanner be of more help?? What are the other things I can try? Cheers Ray
  13. P

    led colour changing shower head

    Surely a must for all those bathroom refurbs to give that extra vav a voom reserved one for tomorrow,will leave blind up in bathroom tomorrow night to show off to neighbours ,might even fit the shower head as well! :sailor:
  14. M

    gas leak head scratch!!

    anyone else had this?? done a tightness test. there is a small drop. isolate appliences and when i get to the boiler and isolate it, it stops dropping. so iv found the culprite. open the valve again just to see it drop again for confirmation and its all ok???? probably re-greased itself or...
  15. F

    Banico mid pos valve head

    Hi all, come across a knackered BANICO 3 port mid pos valve today, not seen that make before but anyway looks like replacing the head might be a problem as I can't find anyone online that does them apart from the manu web site and you can't order from them. Does anyone know if a honeywell will...
  16. JCplumb

    Tool for stubborn tap head gear?

    As the title suggests. Anyone know of a decent tool for removing a really stubborn tap head gear? I've usually managed to crack them after a while but one job a couple of months ago had me beat, the customer had these really old taps and he loved them and I was close to threading the 'nut' part...
  17. M

    My head is spinning

    No not more daft pictures. I completed the assessments on REFLP2, HTRLP2, HTRLP3, WATLP2 and WAHLP1 yesterday and bits of information had been spinning round my mind half the night. I did the practicals first and then the writtens. I can't believe the number of time I read the question decided...
  18. M

    My Head

    Every now and then I have a play and take a self portrait. I like to try and take a shot that looks as though it's been photoshopped but without using photoshop. Packed by Mike Jackson1, on Flickr Shopping by Mike Jackson1, on Flickr Discarded by Mike Jackson1, on Flickr Chilled by Mike...
  19. G

    Please help.... Installing a negative head pump.

    If I install a negative head pump for 2 showers will it also power up to feed the positive head taps... I've got a: Stuart Turner Monsoon Shower Pump 2 bar Twin Impeller Negative Head :sweatdrop: Thanks in advance...
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