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padilas [110]
3 years ago
8

I rly need help with these three questions

Physics
1 answer:
bazaltina [42]3 years ago
5 0

6). the presence of caffeine on the worm's skin

7). the worm's heart-rate

8). "Dripping caffeine on a worm's skin causes the worm's heart to beat faster."

(Note: The things she observed suggest but do not PROVE that this hypothesis is true.)

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