Catálogo

Ver también:

• Atm?sfera
• Biogeograf
  Geographical distribution of animals and plants.
• Ecolog
  Use for the study of relationships between living organisms and their natural environment.
• Efectos de las actividades humanas
• Especie humana
• H?bitat
• Hidrosfera
  That part of the earth that is water e.g. oceans, lakes and rivers.
• Medio ambiente natural
• Tierra (planeta)