Категории: Все - eggs - internal

по eva fernandez 2 лет назад

125

Reproductive patterns

Animals exhibit diverse reproductive strategies, categorized primarily into three types: viviparous, oviviparous, and oviparous. In viviparous species, mothers give birth to live young that have been nourished through the placenta during gestation, with common examples including cats, dogs, and humans.

Reproductive patterns

Reproductive patterns

Oviparous

Crocodiles, chickens, insects...
Internal or external
Hatch from eggs

Oviviparous

Seahorses, snakes...
Feed on the nutritional material of the eggs
The eggs remain inside the mother until they hatch

Viviparous

Examples
Cats, dogs, humans...
How is fertilization?
Internal
How do embryos feed?
Nourished through the placenta
How are they born?
Mothers give birth when they are fully grown