Members of this class use internal fertilization. Moreover, most members are ovoviviparous (Whale sharks). However, some species are also... View Article
All members of class chondrichthyes are predators, which means they need to feed on other animals. Hence, they have specialized dentition that... View Article
Members of class chondrichthyes are characterised by their cartilaginous skeleton. This is in stark contrast to class osteichthyes, where members... View Article
There are many examples of fish whose skeleton is made of bone tissue. Examples include Catfish, clownfish, tuna, eels, and sturgeon. Also... View Article
From a functional perspective, cartilage is lighter and more robust than bone tissue. This enables sharks to swim much quicker while requiring a... View Article
Yes, there are members of class chondrichthyes that lay eggs. Examples include Big skate (Beringraja binoculata) and zebra shark (Stegostoma... View Article
The primary difference between these two classes is that members of class chondrichthyes have their skeletal system made of cartilage while... View Article
Class chondrichthyes contain cartilaginous fish. This class is made up of two subclasses - Elasmobranchii and Holocephali. Sharks, skates and... View Article
No. Amniotes are limited to limbed vertebrates that include all members of class reptilia, aves and mammalia. Amniotic eggs contain a membrane... View Article
CNA 12th July 2021:- Download PDF Here TABLE OF CONTENTS A. GS 1 Related B. GS 2 Related POLITY AND GOVERNANCE 1. New population policy keeps all... View Article
Annelids have parapodia, e.g. Nereis, etc. Further reading: Coelom Are Flatworms Coelomate? Difference Between Oviparous And Viviparous... View Article
Parapodia are lateral appendages that help in locomotion in annelids. Further reading: Coelom Are Flatworms Coelomate? Difference Between... View Article
Excretion in protozoa occurs through the cell membrane by diffusion. Contractile vacuole helps in excretion in protozoa. Also Check: Protozoa... View Article
