What substance are human nails made of?
Correct answer: Keratin
((TACO69))
DID U KNW ::: 😏😏😏Nails start in the nail root, hidden under the cuticle. When cells at the root of the nail grow, the new nail cells push out the old nail cells. These old cells flatten and harden, thanks to keratin, a protein made by these cells. ... Cuticles help to protect the new nail as it grows out from the nail root.
Tianah Olson
Tracy Kilgore, It is a mindless habit thats not easy to quit. Don't judge without having been there yourself.
IrishGirl6
Tianah Olson,
Its like any other nervous habit. Prople dont think about it, they just do it.
akathenerd
dentin is what our teeth are mostly comprised of beneath the enamel.
cartilage is a connective tissue found mostly in the joints but also the ears, nose and ends of the ribs.
hydroxyapatite is harder to condense just in one sentence because it has many different forms. one mineral is found in our bones and another form is the mineral that our dentin is mostly comprised of. archeologists also test hydroxyapatite of remains to estimate diet and migration patterns of a particular species
Player #10162546
Doglover012162, that is a manicured nail not like the fake claws ppl wear now
Ex Farmer 2001
They don't like a hammer
Queenofnacht
That's also what rhino horns are made of
Jo
Doglover012162, That IS a manicured nail
Salahmanefirmino
By the way, hedgehogs spines are also made of keratin
Player #32567393
Doglover012162,
Cozzy 25,
That IS a manicured nail!!
debo
Tianah Olson, I see u everytime wow
Owen
What is the picture of nail root
Adeline Tefang
The nail of a woman is precious nomatter it's colour!!
Adeline Tefang
((TACO69)), It's true!!
cutie
👀i did not know!!
hanner
shawty, my nails look very similar to that. not manicured. except the at home kind.
I can I will
This was so easy
Afolashade
I didn't know oo I did not know
Luna
((TACO69)), wow, I thought nails grew from my hair 😑
Blue
((TACO69)), so smart bro .
MOON
I DIDN'T KNOW THIS
SapphirePleasire
Ex Farmer 2001, lol or door hinges!
Tom
Tianah, Tracy and all you nail-biters out there … in my youth I used to nibble them down to the quick, and sometimes beyond, till they bled and got wavy ends. When I graduated from high school, my grandma made me promise I'd stop before going off to college. I stopped that day and haven't bitten them since (except maybe to remove the occasional torn hangnail), and that was nearly fifty years ago.
Slarty Barty
Human hair is also made from keratin.
sv
Tianah Olson, how 🤔
Mark
I knew the answer, I just didn't know how to spell it :/
Julz
Even though they made of keratin and are very hard nails , they absorb like sponge 👌
Hana
((TACO69)), yeah
Unknown User
I wrote gelatin it fit perfectly 😂😂😂
Rishaan Garai
Rishaan Garai
MONTEJO
it's beautiful this game
Divija
((TACO69)), I already know bro 😎
anjaneya chamoli
how did you know
Kirby Q
Tad opened up his eyes to see how far away
AndyAlwysSmiling
((TACO69)), Darn! I misspelled it!
KEN
it's keratin exactly
heather
Mack, Ugh, so sorry to hear that!
lizouche
((TACO69)), thank you very informative
Nisha
((TACO69)), keratin
Player #82507465
Tianah Olson, bees are nice