When plant seedlings emerge from the ground, the leaves always grow upwards while the root system grows downward into the ground. Explain the force used by plants to determine their growth direction.
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Is citizens were comfortable with their detachment from england and had no interest in going to war

What do your cells need to live? a. carbon dioxide b. carbon c. air d. oxygen

The images show two species of tree frogs in a particular region. the gray tree frogs are adapted to the trees of the woodlands, while the green tree frogs can survive in woodlands or grasslands. the gray frog was abundant in the woodlands. because of climatic changes, most of the trees in the region died, and the woodlands changed to grasslands. in such a case, the . the gray tree frog is closely related to the green tree frog genetically, but they have different mating calls. this suggests that speciation occurred because of .