1) What is the cosmic background radiation attributed to? A. the signature

of the energy remnants of the big bang B. the radio noise from hot gas in rich galactic clusters C. the faint glow of light pollution across the night sky D. the light emitted by supernova explosions

2) What is the medial forebrain bundle?

3) Based on your data from the wooden dowel tapping activity, does this

activity demonstrate a limitation of your sense of touch or a limitation of your perception of your sense of touch?

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