ECOL 1000 Exam 1 Study Guide QUESTIONS WITH ANSWERS.

ECOL 1000 Exam 1 Study Guide
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QUESTIONS WITH ANSWERS |\ |\




ecology - CORRECT ANSWERS ✔✔scientific study of interactions
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between organisms and their environments
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environmental science - CORRECT ANSWERS ✔✔study of all
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aspects of the environment with respect to how they affect
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humans


increase contraception and death rates - CORRECT ANSWERS
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✔✔how to slow human population growth
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pre-agricultural period - CORRECT ANSWERS ✔✔grew as humans |\ |\ |\ |\ |\ |\ |\ |\


expanded into new territories and developed new tools; grew
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slowly over 1 million years
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agricultural period - CORRECT ANSWERS ✔✔stimulated human
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population growth; population grew more rapidly over 7000 years
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industrial period - CORRECT ANSWERS ✔✔led to increased food
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production and improved sanitation, nutrition, and medical care;
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population grew rapidly within 3 centuries
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birth/death/immigration/emigration - CORRECT ANSWERS ✔✔the |\ |\ |\ |\ |\


four factors in population change
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, exponential (logistic) growth - CORRECT ANSWERS ✔✔pop.
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growth used for populations with continuous
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reproduction/overlapping generations
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geometric growth - CORRECT ANSWERS ✔✔pop. growth used for
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populations with reproduction occurring at discrete intervals
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(seasonal reproduction) |\




rate of change in population - CORRECT ANSWERS ✔✔dN/dt = rN
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exponential model of growth - CORRECT ANSWERS ✔✔dN/dt = rN
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logistic model of growth - CORRECT ANSWERS ✔✔dN/dt = rN( 1 -
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N/K)


carrying capacity (K) - CORRECT ANSWERS ✔✔the number of
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individuals that the environment can support indefinitely
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maximum exponential growth - CORRECT ANSWERS ✔✔occurs
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when population size (N) is small
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density-dependent factors - CORRECT ANSWERS ✔✔factors that |\ |\ |\ |\ |\ |\ |\


influence population growth in accordance with population size
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(resource availability, competition, disease)
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