Question

there are two types of smooth muscle: multiunit and unitary. click and drag each label into the appropriate category based on whether it pertains to multiunit smooth muscle, unitary smooth muscle, or both. labels drop zones assists in focusing light on the retina multiunit (1/3) unitary (2/3) both (3/3) found in the urethra also known as visceral muscle connected to each other by gap junctions found in blood vessels contracts the pupil

Explanation:

Multitunit smooth muscle: Assists in focusing light on the retina (found in the ciliary muscles which are multitunit smooth - muscle and help in accommodation for vision). Also known as visceral muscle (a general term sometimes used for smooth muscle, and multitunit is a type of smooth muscle).
Unitary smooth muscle: Found in the urethra (unitary smooth muscle is present in many hollow organs including parts of the urinary tract). Connected to each other by gap junctions (a characteristic feature of unitary smooth muscle allowing for coordinated contractions). Found in blood vessels (unitary smooth muscle is present in the walls of small blood vessels). Contracts en masse (a property of unitary smooth muscle due to gap - junction coupling).

Answer:

Multitunit: Assists in focusing light on the retina, Also known as visceral muscle
Unitary: Found in the urethra, Connected to each other by gap junctions, Found in blood vessels, Contracts en masse