Match the characteristics to the type of hair.
cuticle scales are either
spinous (petal-like) or
coronal (similar to a crown)
cuticle scales are flattened
or imbricate
medulla is less than one-third
the diameter of the hair shaft
medulla is greater than one-hall
the diameter of the hair
shaft
Human Hair
Animal Hair

your answer would be a. 12.5 kg

out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance