Biology, 06.11.2020 22:00, jadabugs8187
A student observes that a popcorn kernel has a hard coat. He places the kernel in a moist paper towel and observes it for several days. He notices that the coat splits and a small root emerges. He concludes that—
water outside the seed coat exerted a pushing force, breaking the seed coat
air inside the seed coat exerted a pushing force, breaking the seed.
water outside the seed coat exerted a pulling force, breaking the seed coat.
gravity exerted a pulling force on the stem, breaking the seed coat.
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A student observes that a popcorn kernel has a hard coat. He places the kernel in a moist paper towe...
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