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
This resource is a video abstract of a research paper created by …
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:
"Ulcerative colitis is a painful inflammatory disease that is associated with an increased risk of colorectal cancer, but the mechanisms linking these diseases are not well understood. There is mounting evidence that the receptor TLR4 (Toll like receptor 4) is a key bridge molecule linking the two. TLR4 is the receptor for endotoxins from gram-negative bacteria, including colitis-associated pathogens. This receptor is overexpressed in both colitis and colitis-associated cancer and may promote tumorigenesis by facilitating cell proliferation and protecting malignant cells against apoptosis. It may also accelerate invasion and metastasis while helping create a tumor-favoring microenvironment. More recently, research has suggested that the microRNA miR-155 may also play a role. The expression changes and cancer promoting properties of miR-155 in colitis-associated cancer development mirror those of TLR4..."
The rest of the transcript, along with a link to the research itself, is available on the resource itself.
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