Question

1. Most amphibians and all frogs reproduce ___ . Fertilization in frogs occurs ___, using a type of mating called ___.
2. The organs of the female frog reproductive system are: ___ and ____. The organs of the male reproductive system are the ___ and ___. The ___ of the kidney functions as a urogenital duct. The organs of the excretory system are: ___, ___, and ___.
3. In the frog, offspring develop in several stages: the egg first develops into a larval stage, called a ___ which then undergoes a process called ___ to become a small version of the adult form.

Answer 1

Most amphibians and all frogs reproduce sexually. Fertilization in frog occurs externally, using a type of mating called amplexus.

The organs of the female frog reproductive system are ovaries and oviducts.

The organs of the male reproductive system are a pair of testes and vasa efferentia.

The ureters of kidney functions as a urinogenital duct.

The organs of the excretory system are kidneys, ureter and cloaca.

In the frog, offspring develop in several stages: the egg first develops into a larval stage, called a tadpole which then undergoes a process called metamorphosis to become a small version of the adult form.