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:Describe the basic structure of a typical prokaryoteDescribe important differences in structure between Archaea and Bacteria

By the end of this section, you will be able to:Identify the main characteristics of bryophytesDescribe the distinguishing traits of liverworts, hornworts, and mossesChart the development of land adaptations in the bryophytesDescribe the events in the bryophyte lifecycle

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:

"Hip arthroscopy has gained worldwide popularity, but to achieve the best patient outcomes, some aspects of the surgery still need improvement. That includes better understanding of intraoperative labral and capsular management, particularly in the setting of a capsular defect. A new study in The American Journal of Sports Medicine aims to fill this gap. In the study, a research team from the Steadman Philippon Research Institute looked at the roles of the capsule and labral suction seal in maintaining distractive stability of the hip. The researchers specifically focused on the biomechanics of capsular reconstruction. To create a biomechanical model, capsular defects were made in eight cadaveric hips. Each defect was reconstructed using an iliotibial band allograft. Distractive stability was tested in the intact state, followed by the capsular defect state and subsequent capsular reconstruction state..."

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

Students are introduced to a challenge question. Towards answering the question, they generate ideas for what they need to know about medicines and how they move through our bodies, watch a few short videos to gain multiple perspectives, and then learn lecture material to obtain a basic understanding of how antibiotics kill bacteria in the human body. They learn why different forms of medicine (pill, liquid or shot) get into the blood stream at different speeds.

In a class demonstration, the teacher places different pill types ("chalk" pill, gel pill, and gel tablet) into separate glass beakers of vinegar, representing human stomach acid. After 20-30 minutes, the pills dissolve. Students observe which dissolve the fastest, and discuss the remnants of the various pills. What they learn contributes to their ongoing objective to answer the challenge question presented in lesson 1 of this unit.