Which of the following is the correct classification for the following chordate animal: This is a vertebrate that does not have a jaw.  An example is the Hagfish which has a cartilaginous skull and skeleton.   Question 30 options:   a)  Urodela / Salamanders   b)  Eutharia   c)  Superclass Agnatha   d)  Birds    e)  Anura / Frogs   f)  Monotreme   g)  Class Osteichthyes   h)  Class Chondrichthyes   i)  Reptiles (non avian)   j)  Marsupial   k)  Cephalochordata

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Marine Evolution

Marine habitat is less explored, and hence, its biological diversity is far less known. The marine habitats are not constant due to their shifting nature, while the terrestrial habitats are more stable. Marine biology is the science that deals with the study of diverse marine species, their interactions, and behavioral characteristics.