Population Dynamics & Human Population Growth

Recall: What term refers to the number of individuals per unit area or volume in an ecosystem?

• Carrying capacity

• Age structure

• Population density

• Growth rate

• Population distribution

Tags

NGSS.HS-LS2-1

Skill/Concept: Why is a kangaroo considered a K-selected species?

• Has many offspring at once

• Occupies unstable environments

• Reaches reproductive age slowly and invests energy in few young

• Has a very short lifespan

• Experiences boom-and-bust population cycles

Skill/Concept: A species that produces many offspring with low survival probability most likely exhibits which survivorship curve?

• Type I

• Type II

• Type III

• Logistic

• K-selected

Recall: The shape of a logistic growth curve is best described as which of the following?

• J-shaped

• S-shaped

• Linear

• Stepwise

• Irregular

Skill/Concept: If a population’s birth and death rates are equal, the population is best described as which of the following?

• Declining

• Increasing

• Stable

• Exponentially growing

• Experiencing overshoot

Tags

NGSS.HS-LS2-6

Skill/Concept: Which factor most directly contributed to exponential human population growth in the past 100 years?

• Increased birth rates

• Industrialization and improvements in medicine

• Decreased food availability

• War and migration

• Reduced life expectancy

Strategic Thinking: In the demographic transition model, what typically decreases first as a country industrializes?

• Birth rate

• Death rate

• Immigration

• Emigration

• Population size

Recall: Which option best describes the replacement-level fertility rate in most developed nations?

• 1.0

• 1.8

• 2.1

• 2.5

• 3.5

Strategic Thinking: Women who are more educated typically have fewer children primarily because they do which of the following?

• Have stronger biological limitations

• Delay marriage and childbearing to pursue careers

• Have lower access to contraception

• Live in rural areas

• Experience higher infant mortality rates

Skill/Concept: Which statement accurately describes the cultural carrying capacity?

• The number of people that can survive in an area before the ecosystem collapses

• The ideal population size that maintains both comfort and sustainability

• The maximum population the land can physically support

• The total number of births possible per woman

• The rate at which resources renew

Tags

NGSS.HS-LS2-1