write the theoretical abd behavioural aspects of unified rival insect.
Answers
Most of the animals in this group are extinct. The egg-laying monotremes are known from fossils of the Cretaceous and Cenozoic periods; they are represented today by the platypus and several species of echidna.
The names Prototheria, Metatheria, and Eutheria (meaning "first beasts", "changed beasts", and "true beasts", respectively) refer to the three mammalian groupings of which we have living representatives. Each of the three may be defined as a total clade containing a living crown-group (respectively the Monotremata, Marsupialia and Placentalia) plus any fossil species which are more closely related to that crown-group than to any other living animals.
The threefold division of living mammals into monotremes, marsupials and placentals was already well established when Thomas Huxley proposed the names Metatheria and Eutheria to incorporate the two latter groups in 1880. Initially treated as subclasses, Metatheria and Eutheria are by convention now grouped as infraclasses of the subclass Theria, and in more recent proposals have been demoted further (to cohorts or even magnorders), as cladistic reappraisals of the relationships between living and fossil mammals have suggested that the Theria itself should be reduced in rank.[2]
Most of the unified rival insect fight with each other for existence.
Explanation:
- the rival insect usually live in a particular habitat. As a result of this there is a definite amount of food and nutrition which is present for all the insect. As a result of this day compete with each other for essential nutrients and hence there is a production of rivalry.
- There is unification between different species or different subspecies. Ultimately there is presence of only one species which stays there permanently
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