A Down Quark Can Be Changed into an Up Quark

question 59

Multiple Choice

A down quark can be changed into an up quark (plus other particles perhaps) by:

• A)the gravitational interaction
• B)the weak interaction
• C)the electromagnetic interaction
• D)the strong interaction
• E)none of these

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Definitions:

Afferent Vessels

Blood vessels that carry blood toward a particular organ or tissue, often referring to the vessels entering an organ.

Efferent Vessels

Blood vessels or lymphatic vessels that carry fluid away from an organ or tissue, as opposed to afferent vessels that bring fluid to it.

Lymphatic Vessels

A network of conduits through which lymph, containing immune cells and waste, is transported.

Secondary Antibody

An antibody that binds to a primary antibody as part of a detection or purification method in biochemistry or microscopy.