Prokaryotes are the most abundant organisms on Earth. This is an introductory lecture that describes their diversity and phylogeny.

Oceans: Gulf of Mexico - Aquatic Science with Dr. Rudy Rosen Lesson 12 includes: Which states share Gulf waters? Which other countries share the Gulf? What are some of the industries in the Gulf? How can people in these industries help keep Gulf waters healthy for aquatic life? What influence does the Mississippi River have on the Gulf? What is a hypoxic zone and its impacts? How are hypoxic zones formed? How can they be prevented? What are some of the ecosystems in the Gulf and what kind of organisms would you find in them? How are oil and gas platforms similar to coral reefs? What might you see on a Texas beach? What are currents? What do they do in the Gulf? How can you help marine mammals or sea turtles? What do you think scientist Sylvia Earle meant when she referred to the Gulf of Mexico as America’s Sea? What does it mean to you? Aquatic Science with Dr. Rudy Rosen is an on-line video curriculum arranged into 13 lessons in YouTube Playlists that follows the contents of Dr. Rosen’s recently published textbook, Texas Aquatic Science. The textbook is published by the Texas A&M University Press and can be obtained at any online bookseller or from the publisher here: http://www.tamupress.com/product/Texas-Aquatic-Science,7918.aspx Each lesson covers a major subject area and is broken down into short sub-topic video presentations. These short videos covering important aquatic science topics can be used by students, instructors in building their own aquatic science curricula, or by life-long learners for self-education. The comprehensive teaching guide and enhancements can be downloaded FREE here: https://tpwd.texas.gov/education/resources/aquatic-science The instructional website is here: http://texasaquaticscience.org/ Dr. Rudy Rosen is a university professor and director of the Institute for Water Resources Science and Technology at Texas A&M University in San Antonio and is a Fellow of the Meadows Institute for Water and the Environment at Texas State University. His bio is here: http://texasaquaticscience.org/rudolph-rosen-author-editor-texas-aquatic-science/ Aquatic Science is a cooperative education project sponsored by The Meadows Center for Water and the Environment at Texas State University, Harte Research Institute for Gulf of Mexico Studies at Texas A&M University-Corpus Christi, Texas Parks and Wildlife, and the National Science Foundation Research Coordination Network for Climate, Energy, Environment and Engagement in Semiarid Regions (NSF-CE3SAR). Additional funding was provided by the Ewing Halsell Foundation and the US Fish and Wildlife Service Sport Fish Restoration Program. Some materials were adapted from or provided by the Missouri Department of Conservation.

Explanation of what declination is from the point of view of astronomy. We also learn about the diurnal motion of celestial objects, and other astronomical terminology such as right ascension in order to fully understand what declination is and the likely reasons why ancient astrologers would consider declination to be important.

A description of the different genotypes of blood.

In this video lesson, Mr. Scullion demonstrates a reacting mass problem involving oxygen. Try the problem out on your own prior to finding out the solution.

An introduction and overview of matter.

Lakes and Ponds - Aquatic Science with Dr. Rudy Rosen Lesson 9 includes: Where are ponds and lakes in your community? What role do they play in your economy? How are lakes similar to ponds? How are they different? What kind of organism makes up the greatest amount of living material in a pond? Besides providing food, what other roles do plants have in lake and pond ecosystems? How are plants that live under water similar to plants that live on land? How are they different? How do temperature and oxygen levels in ponds change during each 24-hour period? How do ponds change over time? What are the benefits and costs of building new reservoirs as a solution for Texas’ future water needs? Aquatic Science with Dr. Rudy Rosen is an on-line video curriculum arranged into 13 lessons in YouTube Playlists that follows the contents of Dr. Rosen’s recently published textbook, Texas Aquatic Science. The textbook is published by the Texas A&M University Press and can be obtained at any online bookseller or from the publisher here: http://www.tamupress.com/product/Texas-Aquatic-Science,7918.aspx Each lesson covers a major subject area and is broken down into short sub-topic video presentations. These short videos covering important aquatic science topics can be used by students, instructors in building their own aquatic science curricula, or by life-long learners for self-education. The comprehensive teaching guide and enhancements can be downloaded FREE here: https://tpwd.texas.gov/education/resources/aquatic-science The instructional website is here: http://texasaquaticscience.org/ Dr. Rudy Rosen is a university professor and director of the Institute for Water Resources Science and Technology at Texas A&M University in San Antonio and is a Fellow of the Meadows Institute for Water and the Environment at Texas State University. His bio is here: http://texasaquaticscience.org/rudolph-rosen-author-editor-texas-aquatic-science/ Aquatic Science is a cooperative education project sponsored by The Meadows Center for Water and the Environment at Texas State University, Harte Research Institute for Gulf of Mexico Studies at Texas A&M University-Corpus Christi, Texas Parks and Wildlife, and the National Science Foundation Research Coordination Network for Climate, Energy, Environment and Engagement in Semiarid Regions (NSF-CE3SAR). Additional funding was provided by the Ewing Halsell Foundation and the US Fish and Wildlife Service Sport Fish Restoration Program. Some materials were adapted from or provided by the Missouri Department of Conservation.

Explanation of how arabic parts, also known as "lots" in Hellenistic astrology, are very important points according to harmonic astrology. The harmonic basis of arabic parts is often overlooked by astrologers, but it is an intriguing idea. The motion of the part of fortune, part of spirit, and part of redemption are also described. Reasons why the part of fortune and part of spirit formula make sense are also given.

Bays and Estuaries - Aquatic Science with Dr. Rudy Rosen Lesson 11 includes: How do bays differ from estuaries? How are they similar? Why is freshwater inflow important in bays and estuaries? What is a hypersaline bay? What kind of plants are there in coastal wetlands? Compare the adaptations of the spotted sea trout and the red drum. How do these adaptions effect their life in bays and estuaries? What causes tides? Why is there a high and low tide? How does this changing flow of water affect aquatic life in bays and estuaries? Why is the Gulf coast important to a bird that nests in Canada or Venezuela? What are some of the economic impacts of bays and estuaries. Has your life been affected by bays and estuaries? How can you help maintain healthy coastal ecosystems? Aquatic Science with Dr. Rudy Rosen is an on-line video curriculum arranged into 13 lessons in YouTube Playlists that follows the contents of Dr. Rosen’s recently published textbook, Texas Aquatic Science. The textbook is published by the Texas A&M University Press and can be obtained at any online bookseller or from the publisher here: http://www.tamupress.com/product/Texas-Aquatic-Science,7918.aspx Each lesson covers a major subject area and is broken down into short sub-topic video presentations. These short videos covering important aquatic science topics can be used by students, instructors in building their own aquatic science curricula, or by life-long learners for self-education. The comprehensive teaching guide and enhancements can be downloaded FREE here: https://tpwd.texas.gov/education/resources/aquatic-science The instructional website is here: http://texasaquaticscience.org/ Dr. Rudy Rosen is a university professor and director of the Institute for Water Resources Science and Technology at Texas A&M University in San Antonio and is a Fellow of the Meadows Institute for Water and the Environment at Texas State University. His bio is here: http://texasaquaticscience.org/rudolph-rosen-author-editor-texas-aquatic-science/ Aquatic Science is a cooperative education project sponsored by The Meadows Center for Water and the Environment at Texas State University, Harte Research Institute for Gulf of Mexico Studies at Texas A&M University-Corpus Christi, Texas Parks and Wildlife, and the National Science Foundation Research Coordination Network for Climate, Energy, Environment and Engagement in Semiarid Regions (NSF-CE3SAR). Additional funding was provided by the Ewing Halsell Foundation and the US Fish and Wildlife Service Sport Fish Restoration Program. Some materials were adapted from or provided by the Missouri Department of Conservation.

This might help some people to relax and learn at the same time. Particularly thinking of kinesthetic learners here.

Community - Aquatic Science with Dr. Rudy Rosen Lesson 5 includes: What are some of the basic survival needs of all living things? What is a population? What is a community? What is habitat? Why is it important? Why must organisms compete for resources? What is carrying capacity? What is a niche? Why is it important? What are invasive species? Why are they a problem? What is the source of energy for aquatic communities? How does energy circulate among organisms in an aquatic community? What is a food chain? What is a food web? What is an energy pyramid? What is a trophic level? How do predator and prey species keep species populations in balance in aquatic communities? What is natural selection? In what ways might food webs, food chains, and predator-prey relationships be different in a pond, an estuary, and the Gulf of Mexico? What happens when one piece is altered or removed? Aquatic Science with Dr. Rudy Rosen is an on-line video curriculum arranged into 13 lessons in YouTube Playlists that follows the contents of Dr. Rosen’s recently published textbook, Texas Aquatic Science. The textbook is published by the Texas A&M University Press and can be obtained at any online bookseller or from the publisher here: http://www.tamupress.com/product/Texas-Aquatic-Science,7918.aspx Each lesson covers a major subject area and is broken down into short sub-topic video presentations. These short videos covering important aquatic science topics can be used by students, instructors in building their own aquatic science curricula, or by life-long learners for self-education. The comprehensive teaching guide and enhancements can be downloaded FREE here: https://tpwd.texas.gov/education/resources/aquatic-science The instructional website is here: http://texasaquaticscience.org/ Dr. Rudy Rosen is a university professor and director of the Institute for Water Resources Science and Technology at Texas A&M University in San Antonio and is a Fellow of the Meadows Institute for Water and the Environment at Texas State University. His bio is here: http://texasaquaticscience.org/rudolph-rosen-author-editor-texas-aquatic-science/ Aquatic Science is a cooperative education project sponsored by The Meadows Center for Water and the Environment at Texas State University, Harte Research Institute for Gulf of Mexico Studies at Texas A&M University-Corpus Christi, Texas Parks and Wildlife, and the National Science Foundation Research Coordination Network for Climate, Energy, Environment and Engagement in Semiarid Regions (NSF-CE3SAR). Additional funding was provided by the Ewing Halsell Foundation and the US Fish and Wildlife Service Sport Fish Restoration Program. Some materials were adapted from or provided by the Missouri Department of Conservation.

Community - Aquatic Science with Dr. Rudy Rosen Lesson 5 includes: What are some of the basic survival needs of all living things? What is a population? What is a community? What is habitat? Why is it important? Why must organisms compete for resources? What is carrying capacity? What is a niche? Why is it important? What are invasive species? Why are they a problem? What is the source of energy for aquatic communities? How does energy circulate among organisms in an aquatic community? What is a food chain? What is a food web? What is an energy pyramid? What is a trophic level? How do predator and prey species keep species populations in balance in aquatic communities? What is natural selection? In what ways might food webs, food chains, and predator-prey relationships be different in a pond, an estuary, and the Gulf of Mexico? What happens when one piece is altered or removed? Aquatic Science with Dr. Rudy Rosen is an on-line video curriculum arranged into 13 lessons in YouTube Playlists that follows the contents of Dr. Rosen’s recently published textbook, Texas Aquatic Science. The textbook is published by the Texas A&M University Press and can be obtained at any online bookseller or from the publisher here: http://www.tamupress.com/product/Texas-Aquatic-Science,7918.aspx Each lesson covers a major subject area and is broken down into short sub-topic video presentations. These short videos covering important aquatic science topics can be used by students, instructors in building their own aquatic science curricula, or by life-long learners for self-education. The comprehensive teaching guide and enhancements can be downloaded FREE here: https://tpwd.texas.gov/education/resources/aquatic-science The instructional website is here: http://texasaquaticscience.org/ Dr. Rudy Rosen is a university professor and director of the Institute for Water Resources Science and Technology at Texas A&M University in San Antonio and is a Fellow of the Meadows Institute for Water and the Environment at Texas State University. His bio is here: http://texasaquaticscience.org/rudolph-rosen-author-editor-texas-aquatic-science/ Aquatic Science is a cooperative education project sponsored by The Meadows Center for Water and the Environment at Texas State University, Harte Research Institute for Gulf of Mexico Studies at Texas A&M University-Corpus Christi, Texas Parks and Wildlife, and the National Science Foundation Research Coordination Network for Climate, Energy, Environment and Engagement in Semiarid Regions (NSF-CE3SAR). Additional funding was provided by the Ewing Halsell Foundation and the US Fish and Wildlife Service Sport Fish Restoration Program. Some materials were adapted from or provided by the Missouri Department of Conservation.