Biology, 18.09.2019 23:30, stephaniem0216
Doug plants a few peas. after two days, he sees the shoot and the root forming. he observes that the shoot grows upward, toward the light. the root grows downward, into the soil. why do these embryonic organs grow in a specific direction?
a. the shoot is positively phototropic and positively gravitropic; the root is positively phototropic and positively gravitropic.
b. the shoot is positively phototropic and negatively gravitropic; the root is positively gravitropic and negatively phototropic.
c. the shoot is positively gravitropic and negatively phototropic; the root is positively phototropic and negatively gravitropic.
Answers: 2
Biology, 21.06.2019 19:40, wweghorst8275
Astudent drew the following flowchart to show the movement of nutrients. soil → roots → plants →? where does nitrogen go next? a. directly into nearby animals as nutrition b. directly into aquifers through condensation c. directly into the air through evaporation d. directly into nearby plants during fixation
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