Examlex
Which of the following groups of cells are most structurally related?
Semen
A fluid containing sperm and other secretions from the male reproductive system that is ejaculated during orgasm.
Nitric Oxide
Nitric Oxide is a chemical compound with the formula NO, serving as an important signaling molecule in many physiological and pathological processes in the body.
Erection
The process by which the penis or clitoris becomes engorged with blood and rigid, often in response to sexual arousal or stimulation.
Circumcision
An operative process where the foreskin of the penis is excised, typically done for reasons that are medical, cultural, or religious in nature.
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