What is ecosystem and two types of it. ​

a biological community of interacting organisms and their physical environment.

"the marine ecosystem of the northern Gulf had suffered irreparable damage"

(in general use) a complex network or interconnected system.An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. Ecosystems contain biotic or living, parts, as well as abiotic factors, or nonliving parts.

"Silicon Valley's entrepreneurial ecosystem"

There are two types of ecosystem: Terrestrial Ecosystem. Aquatic Ecosystem.

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answer; i believe the correct answer is (4) flip a coin as each participant arrives,heads indicates assignment to the first group: tails indicates assignment to the second group;

answer; being clearly political;