Observe different animals around you and make a list of viviparous and oviparous animals. Collect pictures and information about these animals and make a report using them
Answers
Answer:
Viviparous Animals
Animals that give birth to offspring are called viviparous. In viviparous animals, both fertilization, as well as the development of the embryo, takes place inside the female reproductive system. Once the fetus development is complete, the mother delivers the baby. This condition is referred to as matrotrophy where the embryo obtains the nutrients directly from the mother and not the yolk.
Examples of Viviparous Animals
Human beings, dogs, cats, elephants, etc are few examples of viviparous animals.
Oviparous Animals
Animals that lay eggs are called oviparous. In oviparous animals, fertilization takes place internally but embryo development takes place externally.
The eggs of birds such as hen and duck carry immature embryo in them. The hard shells of eggs protect them from damage. Once the fetus is matured, the egg hatches. The trait of egg-laying animals is known as oviparity.
Examples of Oviparous Animals
All birds lay eggs with a typical hard calcium shell. Frogs are egg-laying amphibians which have soft gelatinous eggs requiring constant hydration. Almost all fishes are oviparous. Except for some species of snakes, all other reptiles are oviparous. In mammals, Echidna and platypus are egg-laying.
Explore more: Reproduction in Animals
Explanation:
Viviparous Animals : Viviparous animals are those refers to the animals that give birth to developed live young individuals. They usually undergo internal fertilization. The development of the zygote occurs inside the females. The embryo receives the nutrition from the mother. The chances of survival is most. It includes mammals.
Examples : dogs, cats, Horses ,cows ,goats, elephant , bats , rabbits.
Oviparous Animals : Oviparous animals refers to the animals that produce eggs that mature and hatch after being expelled from the body. They lay either fertilized or unfertilized eggs. They undergo external or internal fertilization. the development of the zygote occurs outside the female. The chances of survival are less.
Examples : hens, butterflies, lizards, frogs, snakes , birds.