Explain the reproductive system of a frog with a diagram.

(N/A) $\rightarrow$ Frogs have well-organized male and female reproductive systems.
$(a)$ Male reproductive system: The male reproductive system consists of a pair of yellowish,ovoid testes which are found adhered to the upper part of the kidneys by a double fold of peritoneum called mesorchium.
$\rightarrow$ Vasa efferentia are $10-12$ in number and arise from the testes. They enter the kidneys on their side and open into Bidder's canal.
$\rightarrow$ The ureter is now known as the urinogenital duct. It emerges from the kidney and opens into the cloaca.
$\rightarrow$ The cloaca is a small median chamber that is used to pass fecal matter,urine,and sperms to the exterior.
$(b)$ Female reproductive system: The female reproductive organs include a pair of ovaries which are situated near the kidneys,and there is no functional connection with the kidneys.
$\rightarrow$ $A$ pair of oviducts arising from the ovaries opens into the cloaca separately.
$\rightarrow$ $A$ mature female can lay $2500$ to $3000$ ova at a time.
$\rightarrow$ Fertilization is external and takes place in water.
$\rightarrow$ Development involves a larval stage called a tadpole. The tadpole undergoes metamorphosis to form the adult.