As a person ages, the skin typically becomes
A. spotted with patches of pigment.
B. more opaque.
C. more elastic.
D. thicker.
Answer: A
You might also like to view...
A common procedure that is used for the purpose of identification is
a. tail docking c. snaring b. ear notching d. castration
Robert Hooke was an English scientist who first described ____ by looking at a thin slice of cork under his primitive microscope
a. organelles b. cells c. plastids d. proteins
Action potentials in neurons in the inspiratory center of the medulla oblongata result in action potentials in the ________ nerves to the diaphragm, which in turn cause ________ of the muscle, resulting in a/an ________ in the volume of the thoracic cage
A. motor; contraction; decrease B. parasympathetic; contraction; decrease C. sympathetic; contraction; increase D. motor; contraction; increase E. sympathetic; relaxation; increase
The process of up-regulation makes target cells more sensitive to a hormone.
a. true b. false