Paul Andersen shows you how to construct a cladogram from a group of organisms using shared characteristics. He also discusses the process of parsimony in cladogram construction. He then explains how modern cladograms are constructed and walks through a cladogram of primates.

Paul Andersen explains the current classification system that we use in Biology. He starts with a brief history of taxonomy. He explains how the goal of classification is to reflect evolutionary relationships. He then explains how each individual organism is classified according to genus and species.

Students are challenged to design a method for separating steel from aluminum based on magnetic properties as is frequently done in recycling operations. To complicate the challenge, the magnet used to separate the steel must be able to be switched off to allow for the recollection of the steel. Students must ultimately design, test, and present an effective electromagnet.

This course has been designed to help professionals working across multiple disciplines bring a climate change adaptation lens to their current and future projects.



It’s structured in four modules, that cover:



-what the current climate change situation is, including the latest science on climate trends and scenarios;

-why climate change matters to professionals and planners, in terms of risk and impact;

-what we can do about it, through examples and methods of adaptation, and;

-how to bring adaptation tools, data and processes into your work, with a practice project.



At the end of the course, participants will understand basic climate change science, scenarios, and projected impacts and risks in British Columbia, and be able to identify data and tools required to plan an adaptation project.

After a butterfly species disappeared from a location where it had been found for many years, conservation professionals accessed climate projections to identify potential habitat for its recovery.

Science communicators have parroted fake climate “solutions” straight from the mouths of corporate public relation firms, even those that are clearly unjust and against the will of the people. They’ve ignored messages from communities who are suffering most from pollution. Although often inadvertently, scientists, with their disproportionately large megaphones, have helped to uphold existing power structures. This free textbook is an attempt to remedy this hole in science communication, providing a framework for learning about the science of the climate crisis for those who don’t accept the status quo. Climate, Justice and Energy Solutions is for visionaries, dreamers, utopian thinkers, and social justice advocates. It’s for those who can imagine not just surviving in a world without fossil fuels, but truly flourishing. The hope is that activists in a wide range of fields can use this text to help bolster their knowledge of science-based climate action when they’re building the next wave of social movements, renewable power networks, and regenerative communities.

This online course will introduce various climatic and ecological modelling tools and guide the students to practical applications of scale-free climate models and niche-based ecological models in forest and ecological (such as birds, fish and animals) resource management to increase the resilience and viability of forest ecosystems. By the end of the course, students will master skills and techniques to, 1) use climatic models to generate spatial climate data; 2) understand niche-based ecological models; and 3) interpret and apply model output to forest management practice.



The course is designed for forest professionals who are interested in professional forestry and forest adaptation to climate change.

This book is aimed to guide the pre-clinical veterinary student through basic patient-side diagnostic testing procedures that accompany the in-person laboratory course.

Paul Andersen explains the concept of coevolution. He begins with an analogy comparing the relationship of humans to technology with those of coevolving species. He then discriminates between coevolution and convergent evolution. He finishes by describing many symbiotic relationships that formed through coevolution.

Paul Andersen starts by explaining the major classification terms in ecology. He then explains how a community can be measured by species composition and species diversity. The symbiosis of leaf cutter ants is included. The podcast ends with a discussion of population growth.

This video is from the Khan Academy subject of Partner content on the topic of Crash Course and it covers Community Ecology: Feel the Love.

The video resource "Community Ecology: Feel the Love - Crash Course Ecology #4" is included in the "Ecology" course from the resources series of "Crash Course". Crash Course is a educational video series from John and Hank Green.

This video is from the Khan Academy subject of Partner content on the topic of Crash Course and it covers Community Ecology II: Predators.

The video resource "Community Ecology II: Predators - Crash Course Ecology #5" is included in the "Ecology" course from the resources series of "Crash Course". Crash Course is a educational video series from John and Hank Green.

Hank introduces us to comparative anatomy, which studies the similarities and differences in animal anatomy to support the theory of evolution and the shared ancestry of living things.

The video resource "Comparative Anatomy: What Makes Us Animals - Crash Course Biology #21" is included in the "Biology" course from the resources series of "Crash Course". Crash Course is a educational video series from John and Hank Green.

Paul Andersen shows you how to compare DNA sequences to understand evolutionary relationships. He starts with a brief introduction to cladograms and evolutionary relationships. He shows you how to classify DNA relationships using a percent match. He finally shows you how to compare DNA sequences between organisms using the NCBI and NCBI BLAST websites.

Paul Andersen explains how eukaryotic cells use compartmentalization to increase the surface area and level of specialization within the cell. Prokaryotic and eukaryotic cells are compared and contrasted. The role of both the mitochondria and endoplasmic reticulum are discussed.

Hank continues our exploration of animal phyla with the more complexly organized annelida and arthropoda, and a biolography on insects.