This slideshow helps you discover the beginning of embryonic development and how it is fertilized, how it grows, and how it, in turn, becomes a pregnancy. [2:18]
Biology 2e is designed to cover the scope and sequence requirements of a typical two-semester biology course for science majors. The text provides comprehensive coverage of foundational research and core biology concepts through an evolutionary lens. Biology includes rich features that engage students in scientific inquiry, highlight careers in the biological sciences, and offer everyday applications. The book also includes various types of practice and homework questions that help students understand—and apply—key concepts. The 2nd edition has been revised to incorporate clearer, more current, and more dynamic explanations, while maintaining the same organization as the first edition. Art and illustrations have been substantially improved, and the textbook features additional assessments and related resources.
By the end of this section, you will be able to do the following:
Describe the Calvin cycle
Define carbon fixation
Explain how photosynthesis works in the energy cycle of all living organisms
Guest lecture recorded July 30, 2020 by Dr. Jessica Whited, Assistant Professor of Stem Cell and Regenerative Biology at Harvard University. Dr. Whited studies limb regeneration in axolotl salamanders, with the ultimate goal of discovering how to regenerate limbs in patients. In this webinar, Dr. Whited discusses how her work involves using Cas9-mediated gene drives to generate axolotls with the desired genetic backgrounds.
Students learn the function of the liver and how biomedical engineers can use liver regeneration to help people. Students test the effects of toxic chemicals on a beef liver by adding hydrogen peroxide to various liver and salt solutions. They observe, record and graph their results.
A comprehensive site that looks at the different types of echinoderms, their life history and anatomy.
Whonamedit.com offers an in-depth look at the life and accomplishments of scientist Lazzaro Spallanzani. Details his many contributions to the world of science.
