If an atom had 20 protons and 18 electrons, it would:
a. have a negative 2 charge
b. have a plus 2 charge
c. be attracted to a positively charged ion
d. both A and C above
b. have a plus 2 charge
You might also like to view...
As the stapes vibrates the oval window, pressure waves first begin
A) in the endolymph of the scala vestibuli. B) in the endolymph of the scala tympani. C) in the perilymph of the scala vestibuli. D) in the perilymph of the scala tympani. E) in the endolymph of the cochlear duct.
The lymphatic system works closely with the _____ system. Select one:
a. respiratory b. digestive c. cardiovascular d. endocrine
Precapillary sphincters
A. serve as valves in veins. B. are found in the tunica media. C. carry blood under high pressure. D. control the blood flow into capillary beds. E. are voluntary structures.
Once hemoglobin has joined with oxygen, it is bright red and called
A. carbaminohemoglobin. B. reduced hemoglobin. C. hemoglobin. D. oxyhemoglobin.