Which statement correctly explains why hair appears the way it does?
A) Kinky hair has flat, ribbonlike hair shafts.
B) Perfectly round hair shafts result in wavy hair.
C) Gray hair is the result of hormonal action altering the chemical composition of melanin.
D) Air bubbles in the hair shaft cause straight hair.
A
You might also like to view...
The ulna is a bone located in the lower fore limb
Indicate whether the statement is true or false
Because of the presence of both activation and inactivation gates, voltage-gated Na+ channels can
a. be closed but capable of opening. b. activated. c. closed and not capable of opening. d. all of these answers. e. none of these answers.
Maltose is a _______.
A) type of starch B) complex carbohydrate C) monosaccharide D) disaccharide
Constriction of which vessel, by intrinsic or extrinsic mechanisms, decreases glomerular filtration
A) glomerulus B) afferent arteriole C) efferent arteriole D) peritubular capillary E) vasa recta