A population of feral cats in a grassland system displays wide variation in tail length, yet...
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A population of feral cats in a grassland system displays wide variation in tail length, yet medium-length tails are the most abundant type. START by illustrating this graphically in the space below, being sure to label your axes Feral Cats in Grasland Variation in Tali Length Case #1: A new predator invades the grassland ecosystem. This particular predator attacks cats by grasping their tails. 1. Draw a dotted line on your graph to indicate how tail length will likely shift in the population given this new pressure. 2. What form of natural selection is this? 3. What pressures forced the population to shift in this way? Briefly explain. Case #2: As the years pass, fire suppression causes this grassland to turn into a savanna (i.e., trees have become more abundant). Cats with long tails have much better balance when climbing trees than those without tails. The same predator from Case #1 is still present (and this predator can climb trees effectively). However, a population of coyotes has also entered the area, and they actively prey on cats on the ground. 4. Draw a different-colored line on your graph to indicate how tail length will likely shift in the population given these new conditions 5. What form of natural selection is this? 6. What pressures forced the population to shift in this way? Briefly explain. A population of feral cats in a grassland system displays wide variation in tail length, yet medium-length tails are the most abundant type. START by illustrating this graphically in the space below, being sure to label your axes Feral Cats in Grasland Variation in Tali Length Case #1: A new predator invades the grassland ecosystem. This particular predator attacks cats by grasping their tails. 1. Draw a dotted line on your graph to indicate how tail length will likely shift in the population given this new pressure. 2. What form of natural selection is this? 3. What pressures forced the population to shift in this way? Briefly explain. Case #2: As the years pass, fire suppression causes this grassland to turn into a savanna (i.e., trees have become more abundant). Cats with long tails have much better balance when climbing trees than those without tails. The same predator from Case #1 is still present (and this predator can climb trees effectively). However, a population of coyotes has also entered the area, and they actively prey on cats on the ground. 4. Draw a different-colored line on your graph to indicate how tail length will likely shift in the population given these new conditions 5. What form of natural selection is this? 6. What pressures forced the population to shift in this way? Briefly explain.
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Related Book For
Cambridge International AS And A Level Biology
ISBN: 9781107636828
4th Edition
Authors: Mary Jones, Richard Fosbery, Jennifer Gregory, Dennis Taylor
Posted Date:
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