Posted on March 27, 2009 at 6:17pm
Ernestina Alvarado Fey
Professor at the Faculty of UNAM
Mexico hunting and disturbance of the environment have many species to the brink of extinction.
The components of the biosphere, are divided into inorganic compounds, such as light, soil, water, and organic, which in turn are divided into flora and fauna.
Throughout the ecosystem both vertebrate and invertebrate animals, are an important factor. Their relations with the rest of the… Continue