Darwin observed an orchid flower with petals arranged in very long, thin tubes, rather than broad and flat, as we might see in other common flowers. What is the advantage to the orchid having an 11-inch-long nectar tube arrangement of the petals? A. The flower can produce nectar more easily spread over a larger area to attract more pollinators. B. The flower can only be pollinated by o specifically adapted pollinator, reducing cross fertzation among orchid species. C. The flower nectar tube can collect more romwater to mainain health of the lower. D. The long tube can trap insects as a source of nutrients.
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