How long have ecosystems existed
because it can
yea dua they can be any were
There are Many ecosystems but there is one main one it goes like this - microrganisms---->zooplankton---> Whale------>Shark-----> Decomposers
Ecology is the study of ecosystems. These involve the interconnected relationships between the various organisms that exist in nature as well as their habitats.
get money
yes. they serve the function of "predators" in most ecosystems in which they exist.
We do not know of any alien lifeforms as of yet, so if they do exist we do not know how their biology works. Most ecosystems on Earth depend on sunlight, so it is likely that any ecosystems on other planets would as well.
Yes in fact damaged ecosystems can be restored but it takes a long long time.
Ecosystems
There are a total of 14 habitats in the world. These habitats are categorized based on the types of ecosystems and environmental conditions that exist within them.
No.
All living organisms live on the crust of the earth. This is called the biosphere and contains all the ecosystems in the world.