AP Biology Flashcards: Population Ecology
Written by AP Content Team, Verified for 2026 AP Exams, Last updated: May 2026
Review key ideas with interactive flashcards. This set includes 10 cards to help you master important concepts.
What three primary factors determine population growth dynamics?
Population growth dynamics depend on birth rates, death rates, and the overall population size.
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What three primary factors determine population growth dynamics?
Population growth dynamics depend on birth rates, death rates, and the overall population size.
If a small group of bacteria is placed in a nutrient-rich petri dish, what growth pattern would you initially expect?
You would expect exponential growth because the reproduction of the bacteria is initially unconstrained by the environment.
Define a population in the context of ecology.
A population is a group of individuals of the same species that interact with each other and their environment.
How does population size itself influence growth dynamics?
Population size is a key factor, along with birth and death rates, that influences the overall growth dynamics of the group.
What type of growth pattern results from unconstrained reproduction?
Unconstrained reproduction within a population leads to a pattern known as exponential growth.
What is the fundamental condition required for a population to experience exponential growth?
The fundamental condition for exponential growth is that reproduction must be unconstrained by any limiting factors.
What are 'population growth dynamics'?
This term refers to how the size and composition of a population change over time, influenced by factors like birth and death rates.
A scientist is studying a group of deer and a group of wolves in the same forest. Why are they considered two separate populations?
They are considered separate populations because they are not individuals of the same species.
What two key interactions define a group of organisms as a population?
The individuals must be of the same species and interact with both each other and their shared environment.
A population's death rate suddenly exceeds its birth rate. What will happen to the population's growth dynamics?
The population size will begin to decrease, as deaths now outnumber births.