Environmental Science
Definition of ecosystem is

The part of the earth and its atmosphere which inhibits living organisms
The community of organisms together with the environment in which they live
The abiotic component of a habitat
A community of organisms interacting with one another

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Environmental Science
Which among the following is related to the word Mesoderm ?

Binomial system of classification
Forms blood and bone (leads to complex internal organs)
Anatomically advanced animals having all three germ layers
No membrane-bound organelles, no peptidoglycan in cell walls, introns

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