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...
Khan Academy
Khan Academy: Genetic Variation in Prokaryotes
Study the mechanisms that generate variation in prokaryote populations. Also learn about transduction, transformation, conjugation, as well as transposable elements.
CK-12 Foundation
Ck 12: Life Science: Health Hazards of Air Pollution
[Free Registration/Login may be required to access all resource tools.] The World Health Organization (WHO) reports that 2.4 million people die each year from causes directly related to air pollution. Worldwide, there are more deaths...
CK-12 Foundation
Ck 12: Life Science: Evolution Acts on the Phenotype
[Free Registration/Login may be required to access all resource tools.] Natural selection acts on the phenotype (traits or characteristics) of an individual. On the other hand, natural selection does not act on the underlying genotype...
CK-12 Foundation
Ck 12: Life Science: Importance of Reptiles
[Free Registration/Login may be required to access all resource tools.] Reptiles play an important role in the life of humans. In addition to playing an important role in many food chains, which keep the populations of small animals...
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...
CK-12 Foundation
Ck 12: Life Science: Reproductive Behavior of Animals
[Free Registration/Login may be required to access all resource tools.] Some of the most important animal behaviors involve mating. Mating is the pairing of an adult male and female to produce young. Adults that are most successful at...
![Cornell Lab of Ornithology: Nest Watch: Nest Monitoring Manual [Pdf] Handout](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "Cornell Lab of Ornithology: Nest Watch: Nest Monitoring Manual [Pdf] Handout")
Cornell Lab of Ornithology
Cornell Lab of Ornithology: Nest Watch: Nest Monitoring Manual [Pdf]
NestWatch is a citizen science project where the average person can assist scientists in observing and cataloguing bird populations to track how successful they are at nesting and reproducing. This 36-page package provides information...
Khan Academy
Khan Academy: Allele Frequency & the Gene Pool
Learn how to find allele frequency and how it's different from genotype frequency.
Soft Schools
Soft Schools: Evolution Quiz
Take this interactive, multiple-choice quiz over evolution, then review your score and any missed questions at the end.
Khan Academy
Khan Academy: Genetic Drift
Find out how evolution happens due to chance events. Explore the bottleneck effect and founder effect.
PBS
Pbs Learning Media: Genetic Variation
This video segment from NOVA: "Cracking the Code of Life" explores the genetic similarities and differences among organisms.
Science Education Resource Center at Carleton College
Serc: Investigating Observing Stabilizing and Directional Selection
In this biology lab students will compare two sample populations of sunflower seeds. Comparison of the two populations will be done through the generation of a histogram for each population. One population will be black oil sunflower...
CK-12 Foundation
Ck 12: Life Science: Levels of Ecological Organization
[Free Registration/Login may be required to access all resource tools.] Ecosystems are organized into several different levels, and they can be studied at any one of the various levels of organization. Learn more about levels of...
Untamed Science
Untamed Science: Ecology: The Study of Interactions
Learn about how ecology is simply the study of how and why organisms interact with their environments.
Illustrative Mathematics
Illustrative Mathematics: F le.a & N Rn Extending the Definitions of Exponents 2
A biology student is studying bacterial growth. She was surprised to find that the population of the bacteria doubled every hour. Aligns with the F-LE.A and N-RN.A.1 standards.
Khan Academy
Khan Academy: What Is Ecology?
A webpage giving an overview of ecology. Learn about the biotic and abiotic factors that make up an ecosystem as well as the different levels of ecology.
Other
Evolution: The Theory of Natural Selection (Part 1)
These pages are part of a site called Evolution that accompany a textbook by the same name. Mark Ridley is the author. This section has an advanced discussion of determining allele and genotype frequencies using the Hardy-Weinberg ratio.
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...
PBS
Pbs Learning Media: La'ona De Wilde: Environmental Biologist
In this video profile produced for Teachers' Domain, meet La'ona DeWilde, an environmental biologist who integrates her Athabascan heritage and her Western scientific training to help remote Alaskan villages address environmental issues.
Khan Academy
Khan Academy: Repetitive Nerve Stimulation in Myasthenia Gravis Patients
Practice questions over repetitive nerve stimulation in Myasthenia gravis patients.
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