Phylum arthropoda consists of the animals with jointed legs. In animal kingdom it represents maximum
ORIGIN OF LIFE Darwin’s theory of evolution tells us how evolution occurs from simple to
COMPONENTS OF ECOSYSTEM Since, the environment refers to both physical and biological conditions, it encompasses
NON-CONVENTIONAL SOURCES OF ENERGY INTRODUCTION OF ALTERNATIVE SOURCES OF ENERGY: We know that by the
POPULATION INTRODUCTION Evolution is the sequence of gradual changes from simple life forms to complex
TRANSPORTATION IN PLANTS INTRODUCTION Plants lack regular transport system like animals in transportation in plants.
ALLOTROPY INTRODUCTION It is the property by which an element exists in more than one
OXYGEN CYCLE INTRODUCTION It is a type of cyclic flow of nutrients between non- living