Welcome, connected, there is many other synonyms.
http://www.thesaurus.com/browse/connection
Answer:
Cell is called the Fundamental Unit of Life Because all basic metabolism activity starts from the cell. Inside the cell, energy is produced , food is stored and many more activities take place
it is structural and functional unit of living beings
it includes all the activities of cells
it is there in each and every life process
Plants on Earth provide food, some even provide shelter to some animals, and plants such as trees provide oxygen to the environment.
