This open textbook covers the most salient environmental issues, from a biological perspective. The text is designed for an introductory-level college science course. Topics include the fundamentals of ecology, biodiversity, pollution, climate change, food production, and human population growth.

Lecture slides for each chapter are available from https://drive.google.com/drive/folders/119oj6XXHnQMpwu_rCgczDFrZPMbqGN8W

This college-level open textbook covers the most salient environmental issues from a biological perspective.

This first-year undergraduate open textbook covers the most salient environmental issues from both biological and social science perspectives.

Paul Andersen explains how living organisms exchange matter with the environment. The importance of the surface area to volume ratio is emphasized using a simple mathematical model. The essential chemicals for life; water, carbon, nitrogen and phosphorus are described. Each of these elements are vital to the four major macromolecules.

Paul Andersen starts with a brief description of enzymes and substrates. He then explains how you can measure the rate of an enzyme mediated reaction. Catalase from yeast is used to break hydrogen peroxide down into water and oxygen. He also explains how temperature and pH could affect the rate of a reaction.

This "Enzyme-Linked Immunosorbent Assay (ELISA)" learning object is the from the Sumanas resource series. Sumanas offers a robust selection of content and services that are directed at enhancing the learning experience.

Paul Andersen explains how enzymes are used to break down substrates. The correct shape of the active site allows a key/lock fit between the enzyme and the substrate. The enzyme catalase is used to break down hydrogen peroxide. The importance of cofactors and coenzymes is emphasized.

Paul Andersen describes three main characteristics of life that are conserved in all organisms on the planet. The universal genetic code, the central dogma of biology, and shared metabolic pathways give us details of the original universal ancestor.

This textbook is written for an audience of introductory college students in a non-science degree program. It is intended to provide a detailed comprehensive knowledge of Planet Earth, including basic aspects of physics, chemistry, geology and biology. As a major scientific overview of the entirety of Planet Earth, the intention is to only present key concepts that will enhance, enrich, and engage the readers interest in Earth Sciences. It is intended to make any reader, such as yourself, at least a little more knowledgeable of the amazing place that we all live within. Hosted as a WikiBook.

Paul Andersen discusses the defining characteristics of the members of Domain Eukarya. He starts with a brief description of the phylogeny of life on earth. He then discusses the major characteristics of eukaryotic cells. He explains how eukaryotic cells evolved from prokaryotic cells using endosymbiosis and infolding.

Hank tells us about the city of Eukaryopolis - the animal cell that is responsible for all the cool things that happen in our bodies.

The video resource "Eukaryopolis - The City of Animal Cells: Crash Course Biology #4" 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.

This "Eukaryotic Organelles" learning object is the from the Sumanas resource series. Sumanas offers a robust selection of content and services that are directed at enhancing the learning experience.

Paul Andersen lists major evidence for the existence of evolution. He begins with a discussion of Charles Darwin and the evidence that he presented in the Origin of Species, including biogeography, fossils, and homologies. He also explains how DNA evidence can be used to trace evolutionary history.

Paul Andersen describes pieces of evidence that Charles Darwin used to support the idea of evolution and his process of natural selection. He begins with the following evidence use in the Origin of Species; artificial selection, biogeography, fossils and homologies.

Paul Andersen explains how life has evolved and continues to evolve today. A brief discussion of artificial, natural and sexual selection is included. The beak of the finch is used to explain how directional selection is achieved.

Hank gets real with us in a discussion of evolution - it's a thing, not a debate. Gene distribution changes over time, across successive generations, to give rise to diversity at every level of biological organization.

The video resource "Evolution: It's a Thing - Crash Course Biology #20" 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.

The Evolution Library has a large of useful resources indexed by topic. Contains numerous interactive exercises and simulations keyed to the episodes of the PBS series

A 13-week laboratory curriculum accompanies the original course at the University of Minnesota.