ECOL 1000 UGA Connelly Exam 1 2026
Question and Answer | Complete Exam Prep
Using Previously Tested Content
• Why do most species become endangered? -✓✓Habitat loss
Alien species
Pollution
Overexploit
Disease
• population growth periods -✓✓Pre-agricultural period
Agricultural period
Industrial period
• "n" -✓✓population size (number of individuals in a population)
• effects on population -✓✓1. Birth (adding to population size)
2. Death (balances out birth rate)
3. Immigration (moving in)
4. Emigration (moving out)
• two general models of population growth -✓✓1. Exponential (logistic) growth
2. Geometric growth
• Exponential (logistic) growth: -✓✓used for populations with continuous
reproduction and/or overlapping generations
, • Geometric growth -✓✓used for populations with reproduction occurring at
discrete intervals
• "r" -✓✓per-capita population growth rate (exponential)
• cohort -✓✓a group of individuals of the same age-class
• Demographic transition -✓✓as societies mature over time, they start with really
high birth rates and really high death rates
• Why is world population still rising even though the birth rate is low? -✓✓There
are more people living in countries in the earlier stages of demographic transition
• "k" -✓✓carrying capacity; number of individuals that the environment can
sustain indefinitely
• What types of factors control population growth or size? -✓✓Density-dependent
factors
Density-independent factors
• Regulation -✓✓tendency of a population to decrease in size when above a certain
level (K) and increase in size below that level
• The ecological footprint of a population is determined by its -✓✓1. size
2. amount of resources used per person
Question and Answer | Complete Exam Prep
Using Previously Tested Content
• Why do most species become endangered? -✓✓Habitat loss
Alien species
Pollution
Overexploit
Disease
• population growth periods -✓✓Pre-agricultural period
Agricultural period
Industrial period
• "n" -✓✓population size (number of individuals in a population)
• effects on population -✓✓1. Birth (adding to population size)
2. Death (balances out birth rate)
3. Immigration (moving in)
4. Emigration (moving out)
• two general models of population growth -✓✓1. Exponential (logistic) growth
2. Geometric growth
• Exponential (logistic) growth: -✓✓used for populations with continuous
reproduction and/or overlapping generations
, • Geometric growth -✓✓used for populations with reproduction occurring at
discrete intervals
• "r" -✓✓per-capita population growth rate (exponential)
• cohort -✓✓a group of individuals of the same age-class
• Demographic transition -✓✓as societies mature over time, they start with really
high birth rates and really high death rates
• Why is world population still rising even though the birth rate is low? -✓✓There
are more people living in countries in the earlier stages of demographic transition
• "k" -✓✓carrying capacity; number of individuals that the environment can
sustain indefinitely
• What types of factors control population growth or size? -✓✓Density-dependent
factors
Density-independent factors
• Regulation -✓✓tendency of a population to decrease in size when above a certain
level (K) and increase in size below that level
• The ecological footprint of a population is determined by its -✓✓1. size
2. amount of resources used per person
