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Ch 6 Pt 2
Test Description: Ch 6 pt 2
Instructions: Answer all questions to get your test result.
1) describes a population whose growth is initially exponential, but slows as the population approaches the carrying capacity of the environment
A
exponential growth model
B
limiting resource
C
logistic growth model
D
intrinsic growth model
2) a group of spatially distinct populations the are connected by occasional movements of individuals between then
A
metapopulations
B
logistic growth model
C
mutualism
D
k-selected species
3) benefits two interacting species by increasing both species' chances of survival or reproduction
A
commensalism
B
parasite
C
mutualism
D
metapopulations
4) when the population becomes larger than the spring carrying capacity
A
overshoot
B
mutualism
C
parasites
D
metapopulations
5) live on or in the organisms they consume
A
parasites
B
overshoot
C
symbiosis
D
mutualism
6) organisms that lay eggs inside other organisms
A
parasitoids
B
commensalism
C
parasites
D
mutualism
7) organisms that have the ability to colonize new areas rapidly and grow well in full sunshine
A
mutualism
B
overshoot
C
pioneer species
D
commensalism
8) composed of all individuals that belong to the same species and live in a given area at a particular time
A
population density
B
endemic species
C
population distribution
D
population
9) the number of individuals per unit area (or volume for aquatic organisms) at a given area at a particular time
A
population density
B
commensalism
C
population
D
pioneer species
10) a description of how individuals are distributed with respect to one another
A
population distribution
B
population density
C
population
D
population size
11) the study of factors that cause populations to increase or decrease
A
population density
B
population distribution
C
population
D
population ecology
12) the total number of individuals within a defined area at a given time
A
population size
B
population
C
pioneer species
D
population density
13) refers to the use of one species as a resource by another species
A
population
B
predation
C
predators
D
die - off
14) competition in which a predator is instrumental in reducing the abundance of a superior competitors allowing inferior competitors to persist
A
endemic species
B
predator - mediated competition
C
die - off
D
predation
15) occurs on surfaces that are initially devoid of soil
A
primary succession
B
secondary succession
C
ecosystem engineers
D
ecological succession
16) where two species divide a resource based on differences in the species' behavior or morphology
A
exponential growth model
B
r-selected species
C
keystone species
D
resource partitioning
17) species that have a high intrinsic growth rate because they reproduce often and produce large number of offspring
A
k-selected species
B
keystone species
C
r-selected species
D
resource partitioning
18) occurs in areas that have been disturbed but have not lost their soil
A
secondary succession
B
community ecology
C
primary succession
D
sex ration
19) the ratio of males to females
A
primary succession
B
keystone species
C
community ecology
D
sex ration
20) graphs of distinct patterns of survival over time
A
survivorship curves
B
ecosystem engineer
C
pioneer species
D
keystone species
*select an answer for all questions
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