Introduction to Phylum Porifera This is the first phylum of the animal kingdom. The word porifera means “Pore Bearers.” Due to the presence of pores on the sponge, it appears like sponge and thus called sponges. Some of the key features of Porifera are as follows: Habit and Habitat of Phylum Porifera Body Structure of […]
Characteristics and Examples of Phylum Porifera Read More »
Introduction The animal kingdom is an amazing tapestry of life forms ranging from microscopic organisms to colossal giants that swim in the oceans, roam the land and soar through the skies. To comprehend this vast assortment of animals, scientists have devised a system called classification. It is a process of organizing and categorizing living organisms
Basis of Classification of the animal kingdom Read More »
Introduction When male and female gametes are fused, zygote formation takes place. Zygote is considered as a vital link that ensures the continuity of species generation after generation. Every sexually reproducing organisms including human beings start life as a single cell, called the zygote. After zygote formation, process of development of embryo takes place. During
Difference between Oviparous, Viviparous and Ovoviviparous Animals Read More »
