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Biology Study Set 4

Biology

Quiz 44 :

Population Ecology

Quiz 44 :

Population Ecology

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Identify the distribution patterns of the desert shrubs in each picture. img
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Short Answer
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Answer:

A.clumped B.random C.uniform

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When discussing population features,a cohort is described as
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Multiple Choice
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A

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Opportunistic species
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Multiple Choice
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B

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Consider that a species of salmon lays 20,000 eggs per pair when it spawns and dies.At the end of five years,an average of one pair of mature salmon from this group of hatched eggs returns again to spawn in the parent stream (19,998 have not survived).What is the growth rate of this population?
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The maximum rate of natural increase of a population that occurs under ideal conditions is the
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Which of the following factor(s)limit(s)exponential growth of a population?
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Tell what type of growth model is depicted in the graph and describe the factors that must be met for a population to experience this type of growth.Identify the labeled phases "A," "B," "C," and "D" and briefly explain what occurs during these phases. img
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Which of the following studies would lie outside of an ecologist's skill set?
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The population growth rate is negative when
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An ecologist may study
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Population size levels off at the ________ of an environment.
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Bangladesh has 2,596 persons per square mile,while the United States has 780 persons per square mile and Canada has 9 persons per square mile.These statistics compare the ________ of these countries.
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Tell what type of growth model is depicted in the graph and describe the factors that must be met for a population to experience this type of growth.Identify the labeled phases,"A" and "B," and briefly explain what occurs during these phases. img
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Consider the life of the praying mantis.The large,predatory female lays several hundred eggs in a foam mass in the fall.The young are most vulnerable when they emerge in the spring,but the few that survive spread out over the countryside and,if they find a mate,lay eggs the following fall.Which type of survivorship curve does this represent?
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All of the following factors will keep a population from growing at its biotic potential EXCEPT
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In the logistic growth curve formula,when N is very large,(K-N)/N is almost equal to 0,which results in
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A pond represents a(n)________,while the minnows represent a(n)________.
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The particular place where an organism lives is its
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A type II survivorship curve,drawn by plotting the number of individuals in a given population alive at the beginning of each age interval,is characterized by
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All of the following statements about population distribution are true EXCEPT
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