ecology

• the atmosphere is the layer of gasses surrounding the earth
• the lithosphere is the crust of the earth
• the cryosphere is the earths surface covered on frozen water
• the biosphere is the regions occupied by living organisms
• down the classification the organisms become more similar
• the first classification is kingdom
• the second classification is phylium
• the third classification is class
• the fourth classification is order
• the fifth classification is family
• the sixth classification is genus
• the seventh classification is species