Variety of organisms existing on the earth, their interrelationships and their relationship with the environment is called

Related MCQs

• Increased level of carbon dioxide in the atmosphere traps the heat rays reflected by the earth causing an increase in the temperature on the earth. This is
• Part of the earth which supports life where living beings exists is called ____
• Species of plants and animals which are found exclusively in a particular area are called
• ____ is the Source book which keeps a record of all the endangered animals and plants.