Biology is designed for multi-semester biology courses for science majors. It is …
Biology is designed for multi-semester biology courses for science majors. It is grounded on an evolutionary basis and includes exciting features that highlight careers in the biological sciences and everyday applications of the concepts at hand. To meet the needs of today’s instructors and students, some content has been strategically condensed while maintaining the overall scope and coverage of traditional texts for this course. Instructors can customize the book, adapting it to the approach that works best in their classroom. Biology also includes an innovative art program that incorporates critical thinking and clicker questions to help students understand—and apply—key concepts.
By the end of this section, you will be able to:Define homeostasisDescribe …
By the end of this section, you will be able to:Define homeostasisDescribe the factors affecting homeostasisDiscuss positive and negative feedback mechanisms used in homeostasisDescribe thermoregulation of endothermic and ectothermic animals
In the southwestern US and in Mexico (and in other parts of …
In the southwestern US and in Mexico (and in other parts of the world), where there are not many trees, people often build houses out of mud bricks called adobe. Adobe houses are warm in the evening and cool in the daytime. If a mud brick is warmed by the sun, how long will it continue to give off warmth once the sun goes down?
In this engineering unit, students are developing background knowledge on heat, heat …
In this engineering unit, students are developing background knowledge on heat, heat transfer and conservation. While this unit can be a stand-alone exercise, it has been designed to provide a way for students to gather data and derive evidence-based conclusions to help them choose the best materials to use in a science class solar cooker project. Students build cardboard houses to explore the movement and conservation of heat energy. A heat source is placed inside the house and students use vernier temperature probes and graphing software to gather and tabulate temperature data. Each house is standard, so that the students understand that we are all gathering data in a consistent way. Students must calculate percentage of wall space given to doors and windows. Students will compare data from team to team, examining heat loss as recorded by temperature differences as a function of window and door areas. Students will cover doors and windows with various materials, examining different insulating qualities. Students will examine the effect on temperature of different colors of wall surface on the interior of the house. After gathering data, students will work to draw conclusions from the gathering of data. Students will construct charts and tables to tabulate data by hand, then will transfer data to Excel spreadsheets if technology is available.
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