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Claw: Quiz


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Question 1: Every so often, the growth of claws stops and restarts, as does ________.
Human skinHairBreastAbdominal hair

Question 2: Many predatory mammals have protractile claws that can partially hide inside the animal's paw, especially the ________, where almost all of its members have fully protractible claws.

Question 3: ________ are often seen working old unguis layers off on wood or on boards made for the purpose.
CatLionGray WolfRaccoon

Question 4: A claw is made of hard protein called ________.
KeratinKeratin 6ACollagen, type I, alpha 1Collagen

Question 5: In tetrapods, claws are made of ________ and consist of two layers.
Collagen, type I, alpha 1CollagenKeratinKeratin 6A

Question 6: A claw is a curved, pointed appendage, found at the end of a toe or finger in most mammals, ________, and some reptiles.
Modern birdsEnantiornithesBirdArchaeopteryx

Question 7: Somewhat similar fine hooked structures are found in ________ such as beetles and spiders, at the end of the leg or tarsus for gripping a surface as the creature walks.


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