Question

How does the reproductive system of avian and mammalian females differ from each other?

Answer 1

Aves: Class Aves include vertebrate animals in which forelimbs are modified into wings. These animals have bodies that are adapted to fly

Mammalia: This class includes vertebrate animals in which mammary glands are found to provide nutrition to the new-born.

Mammalian reproductive system	Avian reproductive system.
1. Females have both ovaries and oviducts.	1. Females have only left ovary and oviducts.
2. A pair of testes is found in scrotal sacs in males.	2. A pair of testes is found in abdominal cavity in males.
3. Copulatory organ penis is found in males.	5. Sperm ducts are found.
4. Females are viviparous.	4. Females are oviparous.
5. Extra embryonic membranes form a structure called placenta.	5. Extra embryonic membranes are found that provide nutrition to the embryo.