Barrons AP Environmental Science

(Marvins-Underground-K-12) #1

  1. (A) Uniform distribution means that organisms of a population are generally
    equally spaced apart. In most situations, a natural uniform dispersion occurs
    when organisms that comprise a population compete for a common
    resource. In (A), red squirrels might be found anywhere within their
    geographic territory, defending it. In (B), cattails would be found clumped in
    only one area (near the water). In (C), dwarf mistletoes would only be found
    where a particular species of forest tree is growing. In (D), moths would
    have a higher density near lighted areas rather than in darker areas, as most
    moths are attracted by light. In (E), the lake trout would be found more in
    the deeper areas of the water.

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