Exam (elaborations)
PLTW BioMed hair evidence (1).
PLTW BioMed hair evidence (1).
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PLTW BioMed hair evidenceWhat type of evidence is hair? - ANS-class evidence
What is hair useful for? - ANS-Backing up other circumstantial evidence
How many hairs does an average human body have? - ANS-5 million
What type of haired people have the most hair on their head? - ANS-Blonde
About how many hairs do blondes have? - ANS-120,000
How many hairs do red-heads have? - ANS-80,000
How many hairs do people with black or brown hair have? - ANS-100,000
How many hairs do we lose in a day? - ANS-100
What is another word for structure of hair? - ANS-Morphology
Is hair very resistant to breaking down? - ANS-Yes
Follicle - ANS-Structure in the dermis of the skin from which a strand of hair grows.
Where is the hair root found? - ANS-The part of the hair contained within the follicle, below the
surface of the scalp.
What is the follicle linked to? - ANS-The body's blood supply which can tell you if the person has
used drugs or alcohol
Shaft - ANS-Extends out through the outer-most layer of skin and ends at the tip, and it is
composed of the cuticle, cortex, and the medulla
Epidermis - ANS-Outer layer of skin
Cuticle - ANS-Formed by overlapping scales that always point toward the tip end of each hair
Who has finer patterns of cuticle scales? - ANS-Humans
What type of cuticle does a mouse have? - ANS-Coronal
What type of cuticle does a cat have? - ANS-Spinous
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