49. All other factors being equal, which of the following is least likely to inv

Question

49. All other factors being equal, which of the following is least likely to involve coevolution? a. An obligate positive interaction in which the two parties are from different kingdoms b. An obligate positive interaction in which one party lives inside the other c. An obligate positive interaction in which the two parties are closely related d. A facultative interaction in which the two parties are from different kingdoms 50. Which of the following statements about symbiosis is TRUE? A. B. All symbioses are mutualisms All symbioses are mutualisms/commensalisms C. D. All mutualisms are symbioses. None of the above is true 51. Cougars prey on both white-tailed deer and mule deer. Because of their shared predator, the abundance of each species of deer is affected by the presence of the other species. This is an example of A) a direct effect B) an indirect effect C) a trophic cascade D) Both b and c a salamander and a small tree are engaged in an ecological relationship in which only the salamander 52. Suppose benefits, but the tree is not harmed. This relationship is a and for the tree, it is a. commensalism; facultative b. commensalism; either facultative or obligate c. mutualism; facultative d. mutualism; either facultative or obligate

Explanation / Answer

Ans 49) a) An obligate positive interaction in which the two parties are different from different kingdom. It is because since both of them are obligate, they might end up competing with each other instead of co-evolving.

Ans 50) c) All mutualism are symbiosis. All the organisms mutualistic to each other are in a symbiotic relationship.

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