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Compare and contrast nutrient limitation in soil vs. nutrient limitation in aquatic ecosystems

What is a traditional chinese touch therapy involving finger pressure applied to specific areas of the body to restore the flow of qi.

Several bird species feed in a certain species of tree. each bird species feeds in a different part of the tree. which statement is true of these bird species? a. they have adapted to different niches due to competition b. they have a carnivorous relationship with the tree species. c. they have adapted to different niches due to predation d. they have a symbiotic relationship with the tree species.