Curated Video
Population Genetics: When Darwin Met Mendel - Crash Course Biology
Hank talks about population genetics, which helps to explain the evolution of populations over time by combing the principles of Mendel and Darwin, and by means of the Hardy-Weinberg equation.
Curated Video
Ecology - Rules for Living on Earth: Crash Course Biology
Hank introduces us to ecology - the study of the rules of engagement for all of us earthlings - which seeks to explain why the world looks and acts the way it does. The world is crammed with things, both animate and not, that have been...
Amoeba Sisters
Biological Levels in Biology: The World Tour
The Amoeba Sisters tour through the biological levels of organization: cells, tissues, organs, organ systems, organism, population, community, ecosystem, biome, biosphere! Table of Contents: 00:00 Intro 0:44 Cells 1:42 Tissues 1:51...
Bozeman Science
Population Modeling
Paul Andersen shows you how we can use a spreadsheet to model population changes. He begins with a brief discussion of populations and life cycles. He then shows you how you can model a single generation using a spreadsheet.
Bozeman Science
Populations
Paul Andersen explains how populations interact in an ecosystem. The symbiosis of several populations is based on effects that may be neutral, positive, or negative. Interactions like mutualism, commensalism and parasitism are included....
Bozeman Science
AP Biology Practice 2 - Using Mathematics Appropriately
Paul Andersen explains how to use mathematics appropriately. He begins by emphasizing the important role that mathematics plays in the life sciences today and in that the future. He describes important mathematical equations in each of...
Bozeman Science
Population Variation
Paul Andersen explains the importance of genetic variation within a population. He begins with a discussion of the devil facial tumor that is a form of cancer transferred between Tasmanian devils. He then explains how a decrease in...
Curated Video
Human Population Growth - Crash Course Ecology
If being alive on Earth were a contest, humans would win it hands down. We're like the Michael Phelps of being alive, but with 250,000 times more gold medals. Today Hank is here to tell us the specifics of why and how human population...
Curated Video
Understanding Populations and Factors Affecting Population Growth
This video is a lecture presentation on populations. The presenter defines the terms population, community, and ecosystem and explains how these terms are related. The factors affecting the size of a population, such as food supply,...
Curated Video
Using Quadrants in Biology Experiments
The video discusses the use of a quadrant in two different biology experiments. The first experiment involves using a quadrant to estimate the population of daisy plants in a given area. The video explains the steps involved, including...
Curated Video
Measuring Populations: Estimating Daisy Populations in a Given Area
This video is a lecture presentation on how to measure populations using an experiment that estimates the population of daisies in a given area. The experiment is conducted by randomly placing a quadrant, a square wire frame that has...
Curated Video
Measuring Populations: Investigating the Distribution of Daisies with Distance from Trees
This video is a lecture presentation on measuring populations. The presenter explains how to investigate the distribution of daisies in a field and how it varies with distance from a line of trees. The hypothesis is formulated based on...
Curated Video
GCSE Biology - Food Chains & Predator Prey Cycles #85
For ecosystems to function they need energy; and we can see how this energy moves through ecosystems with food chains. We also explore how the populations of predators and prey vary over time with predator prey cycles.
Curated Video
BIOLOGY - Environment - Global population growth
From about 2 million years ago until 13,000 years ago there were several human species inhabiting the earth. In fact, 100,000 years ago there were at least 6 different human species! Today there’s just us: Homo sapiens. In this video...
Curated Video
Population Ecology- An Introduction
It describes the role of biological agents for controlling pests. It describes genetically modified organisms (using Bt microbe) and their uses as biocontrol agents.
Nature League
Amazing Advancements in Wildlife Biology | #NowNotThen Tag
This week on Nature League, Brit Garner discusses some positive changes to wildlife biology and conservation research over the last few decades. Get your Critically Endangered Sharks poster here! Only on sale through May 30th.
Curated Video
BIOLOGY - Evolution -Competition & Natural Selection
In nature, all organisms compete with each other for resources in order to survive. Competition between members of the same species is what makes organisms evolve. This theory of competition and ‘survival of the fittest’ is called...
Mazz Media
What is a Population?
What is the difference between a population, community and ecosystem and species? What defines different populations of the same species? What factors lead to separate populations? In this program explains that members of the same...
Amoeba Sisters
Genetic Drift
Discover what happens when random events meet allele frequencies: genetic drift! This Amoeba Sisters video also discusses the bottleneck and founder effect as well as contrasts genetic drift with natural selection. Table of Contents:...
TED Talks
TED: The way we think about biological sex is wrong | Emily Quinn
* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences. Did you know that almost 150 million people worldwide are born intersex -- with biology that doesn't fit the...
Bozeman Science
AP Biology Science Practice 1: Models and Representations
In this video Paul Andersen explains the importance of models and visual representations in an AP Biology class. Science practices are overarching skills and knowledge required to be successful in an AP Biology classroom. Models for each...
Curated Video
Natural Selection - Crash Course Biology
Hank guides us through the process of natural selection, the key mechanism of evolution.
Curated Video
Agricultural Solutions for Feeding a Growing Population: GM Organisms, Fertilizers, and Biological Control
This video explores agricultural solutions that can help feed the growing human population. It discusses three methods: genetically modified organisms (GMOs) to control pests, fertilizers to increase crop growth, and biological control...
Curated Video
Factors Affecting Food Security: Increasing Population, Changing Diets, Pests and Pathogens, Environmental Changes, and More
In this video lecture, the speaker discusses the concept of food security and the various factors that affect it. They begin by explaining that food security means having enough food to feed a population, and then go on to discuss the...
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