Which of the following scenarios may demonstrate an organism selecting a resource non-randomly? (Hint: think about the availability versus use of each type of resource .) a. )A tide pool contains twice as many red urchins as purple urchins. Otters eat twice as many red urchins as purple urchins . B. ) In a desert with equal numbers of creosote and saltbush, ants gather only creosote seeds. C. ) In a desert of only creosote bushes, ants gather creosote seeds. D. ) A tide pool contains twice as many purple urchins as red urchins. Otters eat twice as many red urchins as purple urchins.

Which of the following scenarios may demonstrate an organism selecting a resource non-randomly? (Hint: think about the availability versus use of each type of resource .) a. )A tide pool contains twice as many red urchins as purple urchins. Otters eat twice as many red urchins as purple urchins . B. ) In a desert with equal numbers of creosote and saltbush, ants gather only creosote seeds. C. ) In a desert of only creosote bushes, ants gather creosote seeds. D. ) A tide pool contains twice as many purple urchins as red urchins. Otters eat twice as many red urchins as purple urchins.

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter53: Population Interactions And Community Ecology

Section: Chapter Questions

Problem 1ITD

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In 1955, conservationists in Hawaii were concerned about an invasive species, the giant African land snail, Achatina fulica. A. fulica was reproducing widely and had few predators. In an attempt to control the invader and protect the environment, the conservationists imported the rosy wolf snail, Euglandina rosea (E. rosea), that preys on other snails for food. Which of the following explains what will most likely happen to A. fulica? Why? E. rosea quickly becomes the top predator, instead of A. fulica. The number of A. fulica decreases. A. fulica and E. rosea become competitors, but A. fulica remains the top predator. The number of A. fulica stays constant. A sudden genetic mutation in A. fulica causes them to become smaller and more attractive to E. rosea. The number of A. fulica decreases. Natural selection causes A. fulica to grow bigger, be more aggressive, and eat more snails, including E. rosea, over time. The number of A. fulica increases.
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