study guides for every class that actually explain what's on your next test Population
from class: Biology for Non-STEM Majors Definition A population is a group of individuals of the same species that live in the same area and interbreed. Populations are the basic units of evolution and ecology, as they interact with their environment and undergo genetic changes over time.
congrats on reading the definition of population . now let's actually learn it.
Predict what's on your test 5 Must Know Facts For Your Next Test Populations can be described by their size, density, distribution, age structure, and sex ratio. The growth rate of a population is influenced by birth rates, death rates, immigration, and emigration. Population density refers to the number of individuals per unit area or volume. Carrying capacity is the maximum number of individuals that an environment can sustainably support without degrading. Genetic variation within a population is crucial for natural selection and adaptation to changing environments. Review Questions What factors contribute to changes in population size? How does carrying capacity affect population growth? What role does genetic variation play in the evolution of populations? "Population" also found in:
© 2025 Fiveable Inc. All rights reserved. AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website. Predict what's on your test