ENSC 1000 Exam 1 UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
Environment - CORRECT ANSWER Surroundings and/or conditions in which humans,
anminal, and plants inhabit.
Ecosystem - CORRECT ANSWER Biological community of interacting organisms and their
physical environment.
Environmental Science - CORRECT ANSWER The study of the relationship between natural
systems and human systems.
Sustainability - CORRECT ANSWER The ability to support long term ecological balance.
Interdisciplinary nature of Environmental Science - CORRECT ANSWER Natural science-
Biology, chemistry, geology
Social science-
Ethics, Political Science, economics
Describe the complex relationship between natural and human systems (conservation, preservation,
policies) - CORRECT ANSWER Natural systems are the earth and life. Human systems are the
populations. They both interact resulting in things like water use, energy use, climate change, alternate
energy and air pollution
I=PXAXT - CORRECT ANSWER I = impact
P= population size
A= consumption
T= technological advances
Population ecology - CORRECT ANSWER Study of population in relation to environment
including influences on density, age structure, and population size.
, Population Density - CORRECT ANSWER Number of individuals per unit area or volume
Immigration and emigration
Exponential Growth Model - CORRECT ANSWER dN/dt=rN
r- per capita growth
N- number of individuals in population
dN/dt- growth rate
Calculate per capita growth rate (r) - CORRECT ANSWER r= b-m
b- birth rate
m- mortality
Zero population growth - CORRECT ANSWER r=0
Logistic Growth Model - CORRECT ANSWER dN/dt=rN[1-N/K]
K - carrying capacity
Exponential vs. Logistic - CORRECT ANSWER Exponential -
Population increase
J-shaped
Logistic -
Population grows more slowly as it nears carrying capacity
More realistic
Carrying capacity - CORRECT ANSWER Maximum population size the environment can
support. (K)
QUESTIONS AND CORRECT ANSWERS
Environment - CORRECT ANSWER Surroundings and/or conditions in which humans,
anminal, and plants inhabit.
Ecosystem - CORRECT ANSWER Biological community of interacting organisms and their
physical environment.
Environmental Science - CORRECT ANSWER The study of the relationship between natural
systems and human systems.
Sustainability - CORRECT ANSWER The ability to support long term ecological balance.
Interdisciplinary nature of Environmental Science - CORRECT ANSWER Natural science-
Biology, chemistry, geology
Social science-
Ethics, Political Science, economics
Describe the complex relationship between natural and human systems (conservation, preservation,
policies) - CORRECT ANSWER Natural systems are the earth and life. Human systems are the
populations. They both interact resulting in things like water use, energy use, climate change, alternate
energy and air pollution
I=PXAXT - CORRECT ANSWER I = impact
P= population size
A= consumption
T= technological advances
Population ecology - CORRECT ANSWER Study of population in relation to environment
including influences on density, age structure, and population size.
, Population Density - CORRECT ANSWER Number of individuals per unit area or volume
Immigration and emigration
Exponential Growth Model - CORRECT ANSWER dN/dt=rN
r- per capita growth
N- number of individuals in population
dN/dt- growth rate
Calculate per capita growth rate (r) - CORRECT ANSWER r= b-m
b- birth rate
m- mortality
Zero population growth - CORRECT ANSWER r=0
Logistic Growth Model - CORRECT ANSWER dN/dt=rN[1-N/K]
K - carrying capacity
Exponential vs. Logistic - CORRECT ANSWER Exponential -
Population increase
J-shaped
Logistic -
Population grows more slowly as it nears carrying capacity
More realistic
Carrying capacity - CORRECT ANSWER Maximum population size the environment can
support. (K)
