Category Archives: Biology

Vestibular neuroepithelium: Regenerative biology and theraputics To watch the full lecture visit: https://videos.rsm.ac.uk/video/vestibular-neuroepithelium-regenerative-biology-and-theraputics About this lecture: Andrew Fo... By: RoyalSocietyMedicine … Continue reading →

Biology Body Fluids Circulation part 20 (Double Circulation) CBSE class 11 XI Biology Body Fluids Circulation part 20 (Double Circulation) CBSE class 11 XI. By: ExamFearVideos … Continue reading →

Does Altruism Exist?: Culture, Genes, and the Welfare of Others by David Sloan Wilson Yale University Press/ Templeton Press, 180 pp., $27.50 Altruism may seem a good thingunless you happen to be an evolutionary biologist. Then it may seem a mixture of a mystery and a curse. The reason isnt hard to see. How could a ruthless process like Darwinian natural selection give rise to altruistic organisms, human or nonhuman, that act in ways that are costly to themselves and helpful to others? Darwin himself was aware of the difficulty and offered some tentative solutions, but it was during the twentieth century that altruism became the subject of nearly fetishistic attention among evolutionary biologists. One imaginable solution is to deny that altruism really exists in nature or to claim that its so rare as to be unworthy of serious attention. Another solution is to construct clever theories that show how natural selection is actually expected to yield altruism. Such theories typically hinge on the level at which natural selection acts. Does it select for fitter organisms, or fitter genes, or populations, or species? Indeed the problem of altruism and the so-called levels-of-selection problem have become nearly inseparable. David Sloan Wilson … Continue reading →

Hendersons Rotary Club got a biology lesson during Thursdays regular meeting. Deborah Jackson, clinical nurse specialist in oncology and genomics and thought leader liaison for California-based Genetech Inc., spoke about cancer and the role genetics play in its development. Jackson and her husband, Rotary member Sean Jackson, are natives of Waco and she got her bachelors degree at the University of Texas and her masters degree in genetics counseling from the University of California at San Francisco. kAmpD E96 =:2:D@? 7@C E9@F89E =6256CD 2E v6?6E649[ y242E:@? E96J 42? =682==J 8:G6 @FE] $96 2=D@ H@C@C6 DFD46AE:3=6 E@ 42?46C 3642FD6 2 72>:=J >6>36C 925 :Enk^Am kAm(6 2== … Continue reading →

Biology Body Fluids Circulation part 14 (Human Heart, value) CBSE class 11 XI Biology Body Fluids Circulation part 14 (Human Heart, structure, Bicuspid, tricuspid,Pulmonary Aortic value) CBSE class 11 XI. By: ExamFearVideos … Continue reading →

Biology Body Fluids Circulation part 18 (Cardiac Cycle) CBSE class 11 XI Biology Body Fluids Circulation part 18 (Cardiac Cycle) CBSE class 11 XI. By: ExamFearVideos … Continue reading →

Department of Biology - Mansfield University of Pennsylvania Join Dr. Robert Maris, Professor and Chair of Biology at Mansfield University of Pennsylvania, as he guides you through the exceptional offerings in the Department of Biology. The Department... By: MansfieldUniversity … Continue reading →

Mulch with BiGro Plant Friendly, Living Biology Mulch with BiGro plant friendly, living biology improves sustainability, helps your ornamental plants look their best all season and makes gardening more convenient for you. By: colorbiotics … Continue reading →

Biology Week 8 By: Robert Hayden … Continue reading →

There is a popular view that all of the natural sciences can be arranged in a chain or ladder according to the complexity of their subjects. On this view, physics forms the base of the ladder because it deals with the simplest building-blocks of matter, atoms and subatomic particles. Chemistry is next up because it studies interacting atoms i.e. molecules. Biology studies complex collections of molecules, i.e. cells. Then comes neuroscience which deals with a complex collection of interacting cells the brain. Psychology, perhaps, can be seen as the next level above neuroscience, because psychology studies brains interacting with each other and with the environment. So this on this model, we have a kind of Great Chain of Science, something like this: This is an appealing model. But is biology really basic to neuroscience (and psychology)? At first glance it seems like biology most importantly cell and molecular biology surely is basic to neuroscience. After all, brains are comprised of cells. All of the functions of brain cells, like synaptic transmission and plasticity, are products of biological machinery, i.e. proteins and ultimately genes. This doesnt imply that neuroscience could be reduced to biology, any more than biology will ever be … Continue reading →