Viviparous and Oviparous Animals and Plants Tnpsc

Directly giving birth to young ones are vivipary animals. Vivipary means placental mammals. The young ones directly receive food and oxygen from the mother through the Placenta. Oviparous Animals The animals that lay eggs laden with the yolk are called Oviparous. The embryonic development takes place outside the body of the mother called Oviparous Animals. … Read more

Equus Genus Characteristics


Equus Eqquus refers to the genus of animals including horses and zebras. Equus is a genus of mammals in the family Equidae, which includes horses, donkeys, and zebras. Within the Equidae, Equus is the only recognized extant genus, comprising seven living species. Equus Genus Characteristics Like Equidae more broadly, Equus has numerous extinct species known … Read more

Prehistoric India : History before Indus valley civilization Upsc

Stone age in India Upsc

In India, the prehistoric period is divided into the Paleolithic (Old Stone Age), Mesolithic (Middle Stone Age), Neolithic (New Stone Age), and the Metal Age. However, these periods were not uniform throughout the Indian subcontinent. The dating of the prehistoric period is done scientifically. The technique of radiocarbon dating is commonly used for this purpose. … Read more

* * All the Notes in this blog, are referred from Tamil Nadu State Board Books and Samacheer Kalvi Books. Kindly check with the original Tamil Nadu state board books and Ncert Books.