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If grapes are the most common food source for most of the years, and drought occurs infrequently, how could there be variation in beak length?
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- Dry fruits, or seeds, with plumes or wings, are adapted by dispersal by ____? Fleshy fruits are adapted for dispersal by ____?If you designed an experiment to determine how temperature and the species composition of seeds affect the growth and reproduction of seed-eating birds, what would be the independent and dependent variables?What is the scientific name of the mango?
- Which was NOT a "fallback food" for the australopiths: A) roots B) berries C) tubers D) stemsHow might the adaptions, like the thick waxy covering on the needles and the smaller surface area of the leaves, help a conifer survive the winter seson?The large and heavy seeds of the limber pine (Pinus flexilis) lack the wings on seeds characteristic of most pines. The seeds are the primary food source for Clark’s nutcracker which harvests seeds after the cones open. It then caches thousands of seeds each summer and fall in locations far from the original tree to eat later in the year. During years when many cones and seeds are produced, the nutcracker caches 3-5x the number of seeds actually eaten. When they are present, tree squirrels remove the cone before it opens before the seeds are fully developed, and will eat the seeds immediately or cache the cone for later consumption. Question: Scientists were interested to see whether the two seed harvesters would affect seed and cone traits. They compared cone and seed traits in areas that had nutcrackers but tree squirrels were either present or absent. Where squirrels were present, cone mass was larger but there were fewer seeds per cone, and smaller kernels per seed. What do the…
- How would seed dispersal by animals be considered mutualism?The mandible lengths of the camellia weevil (used to break through the pericarp of the Japanese camellia fruit) vary in the northern and southern regions of the country where fruit sizes are also extremely different. Southern weevil populations have longer mouthparts but are not sufficient to bore into the thick pericarp of the fruits; In the north, the insect mouthparts may be shorter but the weevils are more successful in boring through the skin of the smaller fruits. This study depicts an example of ______ coevolution. A. escalatory B. diffuse C. antagonistic D. reciprocalWhat are the features of eastern hemlock to dominate Synder-Middleswarth Natural Area?
- Review the following figure, and then answer the two questions that follow. a)Given that beak size in mature adults does not change, what factor is driving the change in average beak size in Galápagos finches over time? Seed number Seed size Rainfall amounts Both b. and c. All of the above. b)What would you predict about beak size if the Galápagos experiences a wet year? More birds with small beaks will survive More birds with large beaks will survive Both a. and b. All of the abovewhat is the ecological implication of white mouth dayflower?Does the species seem more characteristic of mountain areas or of valley areas? Why do you think this is? https://youtu.be/aDIQFQOCGaI