I. Sperm cells the immediately when they are released from the body and are placed in a petri plate.
II. Semen contains chemicals that causes females smooth muscles to contract
Each ovary is bout 2-4 cm in length connected to the ...A... wall by ...B... Each ovary is covered by a thin epithelium which encloses the ovarian stroma. Stroma is divided into two zones ...C... and ...D...
Fill the suitable choices for A to D