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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Biology, 23.06.2019 00:40, lamanihill
Where is the energy shown in the equation transferred as a result of photosynthesis? into water into the air into sugars into the ground mark this and return save and exit save and exit bones
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Biology, 23.06.2019 01:30, rosa2268
Acertain species of fish can have either long or short fins. the allele for long fins is dominant over the allele for short fins. a heterozygous, long-finned fish is crossed with a homozygous, short-finned fish. of the offspring, will have long fins and be , and will have short fins and be .
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Darwin observed an orchid flower with petals arranged in very long, thin tubes, rather than broad an...
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