Its just how we put animals in a class like how we put dogs in the dog group we put cows in the cow group....
A class can be a subclass of another class, not of itself.A class can be a subclass of another class, not of itself.A class can be a subclass of another class, not of itself.A class can be a subclass of another class, not of itself.
Specialization Hierarchy - has the constraint that every subclass participates asa subclass in only one class/subclass relationship, i.e. that each subclass hasonly one parent. This results in a tree structure.Specialization Lattice - has the constraint that a subclass can be a subclass of morethan one class/subclass relationship.
Prototheria are in the phylum subclass chordata.
Rosidae is a subclass of the class Magnoliatae. They are a group of trees and herbs and shrubs, mostly with flowers that are polypetalous.
The koala is in the subclass 'Marsupialia', which belongs to the class Mammalia. It is a marsupial and a mammal.
They are part of the ray-finned subclass.
Subclass Nautiloidea: nautilus,Subclass Coleoidea: squid, octopus, cuttlefish
A subclass invokes its base class constructor at the point of instantiation. That is; you cannot instantiate a subclass object without first constructing its base class, which is done automatically.
The base class constructor is invoked first when a subclass is instantiated, because the base class must be viable and consistent before the subclass constructor is fired.
Most of them come under the subclass "Actinopterygii"
No.
Elasmobranchii is a subclass for sharks