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 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 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:
"Obtaining sufficient nutrients is a fundamental challenge for most animals. The availability and nutritional content of food can vary in response to changes in climate and geography, and nutritional demands can vary during life events such as growth and reproduction. Of the many ways that animals have evolved to cope with these demands, one has gained increasing attention. The gut microbiome helps to break down and ferment plant carbohydrates, making it a potentially important player in nutrient availability. A new study sought to evaluate the environmental drivers of gut microbial diversity by generating the largest wild nonhuman primate gut microbiome dataset. Using 758 samples from wild Ethiopian geladas, which live in an extreme environment with limited food quality, researchers tested how proxies of food availability (rainfall) and thermoregulatory stress (temperature) affected the gut microbiome..."
The rest of the transcript, along with a link to the research itself, is available on the resource itself.
Thermoregulation is the ability of an endothermic organism to maintain a relatively constant body temperature, despite fluctuations in temperature of the external environment. This is a vital part of homeostasis.