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

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

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Environmental Science
The atmosphere near the earth's surface is "heated from below." Which of the following does not significantly contribute to this heating?

Convection from a hot surface
Conduction of heat upward from a hot surface
Absorption of infrared energy that has been radiated from the surface
Heat energy from the earth's interior

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