Ecology - Penn foster
Which one of the following factors is considered part of a population's demographics?
-Available resources
-Population density
-Climate
-Age - answer age
With respect to the regulation of population growth, which one of the follow factors is a
density-independent factor?
-Predation
-Predator-prey cycles
-Competition
-A tsunami - answer a tsunami
A coral reef with its various species is a good example of a - answer community
An ecologist would most probably be studying patterns of _______ to learn about how
average age at death influences the size of a population. - answersurvivorship
Demographic factors, such as the typical number of offspring per reproduction and the
age at which reproduction begins, are considered to be factors impacting _______
potential. - answerbiotic
The number of individuals the environment can sustain indefinitely is referred to as -
answercarrying capacity
Which of the following traits increases the vulnerability of a species to extinction? -
answernarrow habitat tolerance
Which of the following biogeochemical cycles involves the weathering of sedimentary
rock? - answerphosphorous
Most of the organic nutrients for Earth's biosphere are produced by -
answerphotoautotrophs
A detrital food web begins with - answerbacteria and fungi
All of the following are terrestrial biomes except - answercoral reefs
Hummingbirds and certain kinds of red flowers acquire adaptive features that allow
them to interact for mutual benefit. What do ecologists call this process? -
answercoevolution
Which one of the following factors is considered part of a population's demographics?
-Available resources
-Population density
-Climate
-Age - answer age
With respect to the regulation of population growth, which one of the follow factors is a
density-independent factor?
-Predation
-Predator-prey cycles
-Competition
-A tsunami - answer a tsunami
A coral reef with its various species is a good example of a - answer community
An ecologist would most probably be studying patterns of _______ to learn about how
average age at death influences the size of a population. - answersurvivorship
Demographic factors, such as the typical number of offspring per reproduction and the
age at which reproduction begins, are considered to be factors impacting _______
potential. - answerbiotic
The number of individuals the environment can sustain indefinitely is referred to as -
answercarrying capacity
Which of the following traits increases the vulnerability of a species to extinction? -
answernarrow habitat tolerance
Which of the following biogeochemical cycles involves the weathering of sedimentary
rock? - answerphosphorous
Most of the organic nutrients for Earth's biosphere are produced by -
answerphotoautotrophs
A detrital food web begins with - answerbacteria and fungi
All of the following are terrestrial biomes except - answercoral reefs
Hummingbirds and certain kinds of red flowers acquire adaptive features that allow
them to interact for mutual benefit. What do ecologists call this process? -
answercoevolution
