cuticle
outer layer of the hair
cortex
middle layer of the hair
medulla
inner layer of the hair
what's the inner layer of a hair?
what is the cortex?
when looking at a strand of hair under a microscope, what's the first layer you'll see?
hair is made up of 3 layers. What are the layers?
while looking at hair under a microscope, hair can reveal a lot about who the hair belonged to. This is used by Law Enforcement and other agencies to find out a person's identity, just by a single strand of hair.
what are the most notable things that can be revealed by looking at hair under a microscope?
the medulla is the most important part of the hair, but why?
pick two
red blood cells
carries oxygen throughout the body
white blood cells
fights off infections and bacteria
plasma
carries nutrients throughout the body
palettes
blood clots and stops/slows bleeding
what's the most important component of blood?
when bleeding, what causes the blood to stop or slow down?
some people think white blood cells stop and slow bleeding. they fight off infections.
as a human, do we need blood?
what kind of protein does plasma carry?
when looking at blood, what color is plasma?
blood type A
blood type B
blood type AB
blood type O
if someone has type A blood, and is given type B blood, what will happen?
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