i need to have an observation of the past and present ecosystem
2006-07-17 00:15:42 · 2 answers · asked by elie_3173 v 1 in Education & Reference ➔ Homework Help
"Hina " is correct in her definition if an ecosystem.
I don't fully understand you question. How will you be able to make a past observation of an ecosystem. How long have you had to do this homework. Also knowing what level you are studying at would be a help. It may be as simple as looking at a puddle of water, before and after it freezes. Sorry I can't really help more than that. Good luck.
2006-07-17 00:40:08 · answer #1 · answered by Ozzie 4 · 0⤊ 0⤋
In ecology, an ecosystem is a combination of all the living and non-living elements of an area. Ecosystems are the smallest level of organization in nature that incorporates both living and nonliving factors. They can range in scale from a wide geographical area such as the Sahara Desert to something small as a puddle. The term microecosystem may be used to describe a very small (often closed) ecosystem.
check out http://en.wikipedia.org/wiki/Ecosystem
2006-07-17 07:19:49 · answer #2 · answered by ♥Hina♥ 4 · 0⤊ 0⤋