$5$-Kingdom classification was given by:

Which organism is more complex and evolved among Bacteria,Mushroom,and Mango tree? Give reasons.

What is binomial nomenclature? List two advantages of naming organisms.

Give reasons for the following:
$(i)$ Bryophytes are called amphibians of the plant kingdom.
$(ii)$ From phylum Platyhelminthes onwards,animals are categorized as 'triploblastic.'
$(iii)$ The presence of 'coelom' in an animal's body is considered advantageous.

Charles Darwin first described the idea of evolution in his book "The Origin of Species". Define the concept of evolution.

Which one is the most striking or common character of the vertebrates?