Ch 6 Pt 2 Question Preview (ID: 39734)


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competition in which a predator is instrumental in reducing the abundance of a superior competitors allowing inferior competitors to persist
a) predation
b) predator - mediated competition
c) die - off
d) endemic species

the total number of individuals within a defined area at a given time
a) population size
b) population
c) pioneer species
d) population density

refers to the use of one species as a resource by another species
a) predation
b) die - off
c) predators
d) population

the study of factors that cause populations to increase or decrease
a) population
b) population density
c) population ecology
d) population distribution

a description of how individuals are distributed with respect to one another
a) population distribution
b) population density
c) population
d) population size

the number of individuals per unit area (or volume for aquatic organisms) at a given area at a particular time
a) population
b) population density
c) pioneer species
d) commensalism

composed of all individuals that belong to the same species and live in a given area at a particular time
a) population
b) population density
c) population distribution
d) endemic species

live on or in the organisms they consume
a) overshoot
b) mutualism
c) symbiosis
d) parasites

organisms that lay eggs inside other organisms
a) parasitoids
b) parasites
c) mutualism
d) commensalism

organisms that have the ability to colonize new areas rapidly and grow well in full sunshine
a) mutualism
b) commensalism
c) pioneer species
d) overshoot

when the population becomes larger than the spring carrying capacity
a) overshoot
b) parasites
c) mutualism
d) metapopulations

a group of spatially distinct populations the are connected by occasional movements of individuals between then
a) logistic growth model
b) k-selected species
c) metapopulations
d) mutualism

benefits two interacting species by increasing both species' chances of survival or reproduction
a) metapopulations
b) mutualism
c) commensalism
d) parasite

describes a population whose growth is initially exponential, but slows as the population approaches the carrying capacity of the environment
a) logistic growth model
b) exponential growth model
c) intrinsic growth model
d) limiting resource

occurs on surfaces that are initially devoid of soil
a) primary succession
b) ecological succession
c) secondary succession
d) ecosystem engineers

where two species divide a resource based on differences in the species' behavior or morphology
a) exponential growth model
b) r-selected species
c) resource partitioning
d) keystone species

species that have a high intrinsic growth rate because they reproduce often and produce large number of offspring
a) k-selected species
b) r-selected species
c) keystone species
d) resource partitioning

occurs in areas that have been disturbed but have not lost their soil
a) secondary succession
b) sex ration
c) community ecology
d) primary succession

the ratio of males to females
a) community ecology
b) primary succession
c) keystone species
d) sex ration

graphs of distinct patterns of survival over time
a) ecosystem engineer
b) keystone species
c) survivorship curves
d) pioneer species

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