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:Explain how hormones regulate the excretory systemDiscuss the role of hormones in the reproductive systemDescribe how hormones regulate metabolismExplain the role of hormones in different diseases

By the end of this section, you will be able to:Understand the physiological basis of stress and describe the general adaptation syndrome

Psychology is designed to meet scope and sequence requirements for the single-semester introduction to psychology course. The book offers a comprehensive treatment of core concepts, grounded in both classic studies and current and emerging research. The text also includes coverage of the DSM-5 in examinations of psychological disorders. Psychology incorporates discussions that reflect the diversity within the discipline, as well as the diversity of cultures and communities across the globe.Senior Contributing AuthorsRose M. Spielman, Formerly of Quinnipiac UniversityContributing AuthorsKathryn Dumper, Bainbridge State CollegeWilliam Jenkins, Mercer UniversityArlene Lacombe, Saint Joseph's UniversityMarilyn Lovett, Livingstone CollegeMarion Perlmutter, University of Michigan

By the end of this section, you will be able to:Differentiate between stimulus-based and response-based definitions of stressDefine stress as a processDifferentiate between good stress and bad stressDescribe the early contributions of Walter Cannon and Hans Selye to the stress research fieldUnderstand the physiological basis of stress and describe the general adaptation syndrome

This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:

"Maintaining mental health during future deep-space exploration is a serious and complicated problem. Such exploration will require people to remain in closed environments for incredibly long periods. But connections between our gut microbes, the gut itself, and our brain could hold new solutions. Research has suggested that influences can travel along this microbiota-gut-brain axis. So, to identify potential mood-boosting microbes in an enclosed environment, researchers turned to the Lunar Palace 365 experiment, where the Lunar Palace 1, a closed bioregenerative life support facility, housed people for a year. The researchers identified four potential “psychobiotics” that corresponded with mental well-being, as well as three possible mechanisms for the improved mood. First, these microbes may be fermenting dietary fibers to produce short-chain fatty acids. Second, they may regulate amino acid metabolism pathways, including the one that converts tryptophan to serotonin..."

The rest of the transcript, along with a link to the research itself, is available on the resource itself.