Science Buddies
Science Buddies: It's Crowded in Here! A Study of Plant Population Density
Like humans, plants can be negatively affected by overcrowding. Unlike humans, plants cannot get up and move to a new environment or explore how to utilize new resources. This experiment will explore the effects of crowding (population...
Alabama Learning Exchange
Alex: Something's Fishy: A Lesson in Biological Sampling
Determining the population in a larger area by tagging. By using proper scientific method and careful sampling procedures, students learn how biologists work in the field to collect data about a population. Students will also calculate...
Biology Pages
Kimball's Biology Pages: Hardy Weinberg Equilibrium
Discusses conditions needed for the Hardy-Weinberg Law to hold true and demonstrates calculations involving allelic frequencies to illustrate this principle.
BiologyWise
Biology Wise: Genetic Mutations in Humans
Discusses common mutations that occur in the human population and describes the many different types of genetic mutations and their impact.
Estrella Mountain Community College
Online Biology Book: The Modern View of Evolution
Take a closer look into the modern view of evolution. This article includes many pieces of evidence, all which support the theory of evolution.
BiologyWise
Biology Wise: Crossing Over and Why Is It Important in Meiosis?
Explains what meiosis is and what happens during crossing over where genetic material is exchanged between chromosomes. This process is important for ensuring that there is lots of genetic variation in a population as it improves survival.
Other
Resilience Alliance: Mammalian Herbivores
This site from the Resilience Alliance provides an in-depth look at mammalian herbivore population patterns in boreal forests. It also discusses man's use of these herbivores.
Curated OER
National Park Service: Carlsbad Caverns Natural Resources: The Bat Colony
Part of the National Park Service website, this page provides general info. about the resident bat population, and links to more specific bat info. For the bat enthusiast!
National Health Museum
Nhm: Amino Acid Sequences Show Evolution
This lesson plan focuses on differences in the amino acid sequence of hemoglobin and myoglobin proteins. They use the number of differences to create a phylogenetic tree.
Oswego City School District
Regents Prep: Ecosystems/communities
Abiotic factors vary in the environment and determining the types and numbers of organisms that exist in that environment. Factors which determine the types and numbers of organisms of a species in an ecosystem are called limiting...
CK-12 Foundation
Ck 12: Life Science: Natural Selection
[Free Registration/Login may be required to access all resource tools.] The theory of evolution by natural selection means that the inherited traits of a population change over time. Inherited traits are features that are passed from one...
PBS
Pbs Learning Media: Genetic Variation
This video segment from NOVA: "Cracking the Code of Life" explores the genetic similarities and differences among organisms.
Cosmo Learning
Cosmo Learning: Principles of Evolution, Ecology and Behavior
A collection of video lectures introducing beginning biology students to the principles of evolution, ecology, and behavior. The course was taught three times a week for a semester at Yale University. The course discusses concepts of...
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