Class 8 Exam > Class 8 Videos > What are Viviparous and Oviparous Animals?
What are Viviparous and Oviparous Animals? Video Lecture - Class 8
FAQs on What are Viviparous and Oviparous Animals? Video Lecture - Class 8
| 1. What are viviparous animals? |  |
Ans. Viviparous animals are those that give birth to live young ones. In these animals, the fertilized eggs develop inside the mother's body, and the offspring are nourished by the mother through a placenta or a similar structure. Examples of viviparous animals include humans, dogs, cats, and whales.
| 2. What are oviparous animals? | |
Ans. Oviparous animals are those that lay eggs. In these animals, the fertilized eggs are laid outside the mother's body, and the embryos develop and hatch from the eggs. The young ones do not receive any nourishment from the mother. Examples of oviparous animals include birds, reptiles (such as snakes and turtles), and most fish.
| 3. What are the differences between viviparous and oviparous animals? | |
Ans. The main difference between viviparous and oviparous animals is the way they reproduce. Viviparous animals give birth to live young ones, while oviparous animals lay eggs. In viviparous animals, the embryos develop inside the mother's body and receive nourishment from her, whereas in oviparous animals, the embryos develop outside the mother's body and do not receive any nourishment from her.
| 4. Why do some animals give birth to live young ones while others lay eggs? | |
Ans. The method of reproduction, whether viviparity or oviparity, depends on various factors such as the environment, evolutionary adaptations, and the needs of the offspring. Viviparity is advantageous in environments where there are predators or harsh conditions, as the mother can provide protection and nourishment to the developing embryos. Oviparity is advantageous in environments where there are abundant resources for the eggs to develop and hatch independently.
| 5. Are there any animals that exhibit both viviparity and oviparity? | |
Ans. Yes, there are some animals that exhibit both viviparity and oviparity, depending on the circumstances. For example, some species of sharks are ovoviviparous, meaning that the eggs develop and hatch inside the mother's body, but the embryos receive no nourishment from her. Instead, they consume the yolk sac attached to the egg. Similarly, some reptiles like certain species of snakes can be both oviparous and viviparous, depending on the environmental conditions and availability of resources.
Text Transcript from Video
how animals born the vaporous animals
the vaporous animals are born from the
mother's womb oviparous animals
oviparous animals are born from an egg a
bear is viviparous Abby is oviparous a
cat is viviparous a cow is viviparous a
crocodile is oviparous a deer is
viviparous a dog is viviparous a dolphin
is viviparous an elephant is viviparous
a fish is / pourous a frog is oviparous
a giraffe is viviparous a hen is
oviparous a kangaroo is viviparous a
ladybird is oviparous a
lion is viviparous a lizard is oviparous
an owl is oviparous a penguin is
oviparous a pig is viviparous a snake is
oviparous a spider is oviparous a tiger
is viviparous a turtle is oviparous
the vaporous animals are born from the
mother's womb oviparous animals
oviparous animals are born from an egg a
bear is viviparous Abby is oviparous a
cat is viviparous a cow is viviparous a
crocodile is oviparous a deer is
viviparous a dog is viviparous a dolphin
is viviparous an elephant is viviparous
a fish is / pourous a frog is oviparous
a giraffe is viviparous a hen is
oviparous a kangaroo is viviparous a
ladybird is oviparous a
lion is viviparous a lizard is oviparous
an owl is oviparous a penguin is
oviparous a pig is viviparous a snake is
oviparous a spider is oviparous a tiger
is viviparous a turtle is oviparous
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Oct 24, 2024 Last updated |
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