Ch 6 Pt 2 Question Preview (ID: 39734)
Ch 6 Pt 2.
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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
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
when the population becomes larger than the spring carrying capacity
a) overshoot
b) parasites
c) mutualism
d) metapopulations
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
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
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
a description of how individuals are distributed with respect to one another
a) population distribution
b) population density
c) population
d) population size
the study of factors that cause populations to increase or decrease
a) population
b) population density
c) population ecology
d) population distribution
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
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
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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