The parietal lobe contains the primary sensory cortex, which controls sensations such as touch or pressure.
The period during which the presence of stromatolites decline is the Proterzoic period. Stromatolites are widely distributed sedimentary structures consisting of laminated carbonate or silicate rocks, produced over geologic time by the trapping, binding, or the precipitating of sediment by groups of microorganisms, primarily cyanobacteria.
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Test the effect of ultraviolet radiation on bacteria growth
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