The expulsion of semen occurs when what propels sperm from the epididymes?
birth muscle contractions kinetic energy urine rapid expansion air heat produced matter vibrating
A B C D E F G H
Ejaculation is the expulsion of semen.
the expulsion of semen occurs when muscle contractions propel sperm from the epididymes.
The expulsion of semen occurs when what propels sperm from the epididymes? (A) birth (B) muscle contractions (C) kinetic energy (D) urine (E) rapid expansion (F) air (G) heat produced (H) matter vibrating