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.

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.

Submitted as part of the California Learning Resource Network (CLRN) Phase 3 Digital Textbook Initiative (CA DTI3), CK-12 Foundation’s high school Biology FlexBook covers cell biology, genetics, evolution, ecology, botany, zoology, and physiology. This digital textbook was reviewed for its alignment with California content standards.

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:

"Plants are shaped by the many microbes they host. But scientists are only beginning to understand how, especially in underexplored plant structures like aerial roots. A new study shows that the mucilage secreted by these roots can create a microbiome unlike that found in underground roots and nurture an environment that caters to beneficial, nitrogen-fixing bacteria. Researchers made these discoveries by examining the aerial roots of pink lady shrubs—a fast-growing invasive plant. Metabolite profiling of aerial root mucilage revealed a rich cocktail of nutrients that would be expected to support an equally rich variety of microbes. But genomic analyses suggested a mucilage community dominated by nitrogen-fixing diazotrophs. This homogeneous community structure was linked to the presence of the fungus C. raphigera. The antibacterial activity of this fungus was such that only diazotrophs were allowed to thrive, to the benefit of the pink lady shrubs..."

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

In this lesson, students will be amateur mycologists--collecting and analyzing various mushrooms. Through observation and discussion, students will gain knowledge of the basic anatomy of mushrooms, their life cycle, and their method of reproduction through spores. Students will learn to create spore prints of mushrooms and label and preserve their spore prints, just like a mycologist. Students also will learn that by comparing spore prints, they can identify different mushroom species.

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:

"The microbes found in topsoil are a vital part of the Earth’s ecology. While several recent studies have explored these microbiomes on a global scale, their data on sub-Saharan Africa was sparse, despite the looming threat of climate change to the region. To close this gap, researchers recently examined the microbial ecology of 810 sites across 9 sub-Saharan African countries. The topsoil microbiomes were shaped by a broad range of environmental factors, particularly pH, precipitation, and temperature, and each nation had a quantifiably distinct topsoil microbiome. Computer models based on the data also predicted how country-specific microbiomes might respond to climate change. In Kenya, for example, higher temperatures and lower rainfall could diminish microbial diversity, whereas in Benin, the predicted increase in precipitation is likely to boost fungal biodiversity..."

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