3.5-3.7 Unit 3

Unit 3: Populations

1. Take out lab reports to turn in (LATE)

2. Take out environmental science journal for notes

3. Login to Wayground

4. No phones or personal devices. Must be in your backpack!!

Open Ended

DO NOW: Describe the trend in survivorship shown in this graph. Justify which type of survivorship curve these data represent.

Multiple Choice

DO NOW: Which type of survivorship curve is typically followed by K-selected species?

• Type I

• Type II

• Type III

• Type IV

Multiple Choice

DO NOW: Which of the following best describes carrying capacity (K) in an ecosystem?

• The maximum number of individuals an ecosystem can support based on limiting resources.

• The average population size over time.

• The minimum number of individuals required for survival.

• The rate at which a population grows exponentially.

Multiple Select

DO NOW: Which factors are considered limiting resources that determine the carrying capacity of an ecosystem?

• Food

• Water

• Habitat (nesting sites, space)

• Sunlight

Multiple Choice

DO NOW: Which of the following traits are commonly associated with r-selected species?

• Short lifespan

• Large offspring size

• High parental care

• Slow population growth rate

Multiple Choice

DO NOW: Which of the following is a characteristic of K-selected species?

• Many offspring, little to no parental care

• Short lifespan, quick to sexual maturity

• Few offspring, heavy parental care

• High biotic potential, rapid population growth

Multiple Choice

Which of the following factors is most likely to limit the population growth of deer in a forest ecosystem?

• Predator presence

• Resource availability

• Weather patterns

• Migration patterns

Multiple Choice

Which of the following best explains how resource availability affects population growth?

• Resource availability determines the rate at which populations grow and decline.

• Population growth is unaffected by resource availability.

• Resource availability only affects population decline, not growth.

• Population growth is limited only by space, not resources.

Open Ended

Describe how population density can influence the likelihood of disease outbreaks within a population.

Multiple Select

Which of the following are density-dependent factors that influence population growth?

• Food

• Competition for habitat

• Natural disasters

• Water

Open Ended

Compare and contrast biotic potential and environmental resistance in terms of population growth patterns.

Open Ended

Calculate the percent change in the population size of a 14 wolf pack that experiences 5 deaths, 3 births, and 4 new wolves released into the pack from a nearby wildlife sanctuary.

Multiple Choice

Which of the following best describes the difference between a rapidly growing and a stable population based on age structure diagrams?

• A rapidly growing population has a higher proportion of younger people compared to a stable population.

• A stable population has more elderly individuals than a rapidly growing population.

• A rapidly growing population has equal numbers of all age groups.

• A stable population has a higher birth rate than a rapidly growing population.

Multiple Select

Select all characteristics that describe a country with a stable population based on its age structure diagram.

• Roughly equal 0-14 and 15-44 cohorts

• Extreme pyramid shape

• House shape

• Little to no growth

Open Ended

Explain how the shape of an age structure diagram can be used to predict future population growth trends.

Multiple Choice

Which countries are most likely to experience population decline based on their age structure diagrams?

• Guatemala, Nigeria, Saudi Arabia

• United States, Australia, Canada

• Spain, Portugal, Greece

• Germany, Bulgaria, Italy

Open Ended

Explain how the shape of a population pyramid can indicate a country's population growth rate. Use examples from the diagrams provided.

Multiple Choice

Based on the population pyramids for India, United States, Germany, and China, which country has the largest proportion of young individuals (ages 0-14)?

• India

• United States

• Germany

• China

Open Ended

Identify the country with the slowest population growth rate and explain your answer.

Independent Practice- AP Classroom

Complete all assigned Unit 3 Quizzes on AP Classroom
Watch videos on topics and take notes in your journal

Exit Ticket-


ON Google Classroom

Multiple Select

Which of the following factors can affect the total fertility rate (TFR) in human populations?

• Access to family planning

• Educational opportunities for females

• Government acts and policies

• All of the above

Multiple Choice

Which of the following is NOT a factor that contributed to the decline in infant mortality rate (IMR) from 1990 to 2017?

• Access to clean water

• Access to healthcare

• More reliable food supply

• Increased air pollution

Open Ended

Explain how government policies can influence the total fertility rate (TFR) in a country.

Multiple Select

Which of the following factors are associated with lower total fertility rates (TFR) according to the data on births per woman by income level?

• Higher average income

• Limited access to family planning

• Lower educational attainment for women

• Higher infant mortality rate

Open Ended

Identify and discuss TWO of the causes for the trend in worldwide TFR.

Open Ended

How does resource availability affect population growth in an ecosystem?