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What is similar between the male and female reproductive systems? Choose all that apply.

(A) they are both highly acidic environments

(B) both systems contain two structures where sex cells mature

(C) both systems have sex hormones

(D) both systems have two tubes lined with cilia where sex cells travel

(E) both systems produce new sex cells from adolescence to adulthood

(F) both systems have parts on the inside and on the outside of the body

Correct!