Environmental Science
What is "temporary threshold shift"?

Tolerable noise
Noise that is untolerable
inaudible noise
Hearing loss due to excessive noise

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

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

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