In a molecule of hydrogen, a pair of electrons is shared equally. Such a bond is called a(n)
A) ionic bond.
B) polar covalent bond.
C) nonpolar covalent bond.
D) oxygen covalent bond.
E) hydrogen bond.
C) nonpolar covalent bond.
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Which is not correct regarding articulations?
A. All articulations contain some type of cartilage. B. An articulation is a joint between a bone and another bone, cartilage, or tooth. C. There are three structural categories of articulations. D. Arthrology is the scientific study of articulations. E. Articulations can range in motion from freely mobile to immobile.
Immunoglobulin ____, found in tissue fluids and plasma, attacks viruses, bacteria, and toxins
a. A b. D c. G d. E
Of the following muscles of the thigh, which one is on the anterior midline?
A) rectus femoris B) sartorius C) adductor magnus D) biceps femoris
What part of the neuron releases neurotransmitters from vesicles?
A) axon terminals B) dendrites C) axon hillock D) Schwann cells E) myelin sheath