modern research laboratory workstation. female scientist working on a computer. researching viruses and diseases - 顯微鏡 個影片檔及 b 捲影像00:25
study of the types of organisms which cause disease: fungi, bacteria, viruses, rickettsiae, and protozoa. uses animation and photography through a... - 顯微鏡 個影片檔及 b 捲影像00:28
1950s: lymph fluid animation. lymph fluid travels to lymph nodes. white blood cells destroy invading germs - 顯微鏡 個影片檔及 b 捲影像00:24
biology: exploring the living world - part 18 of 18. examines the three lines of defense against infection - the skin and mucous membrane, the lymphatic system, and the circulatory system including liver and spleen. explains how the body becomes immune to - 顯微鏡 個影片檔及 b 捲影像00:34注射疫苗
theories on the origin of life - part 11 of 24. this presentation of four theories on the origin of life is designed to encourage students to discuss the evidence, to question, to research. special creation attributes origins of life to a supernatural bei - 顯微鏡 個影片檔及 b 捲影像00:23
science, microscope and woman in lab with sample for dna testing, biotechnology and analysis. healthcare, innovation and female scientist in laboratory for research, experiment and medical analytics - 顯微鏡 個影片檔及 b 捲影像00:09
laboratory technician, asian medical technicians work in private laboratories. - 顯微鏡 個影片檔及 b 捲影像00:18亞洲
looking through a microscope. female researchers working in a research facility. - 顯微鏡 個影片檔及 b 捲影像00:21
woman, scientist and writing with tablet for investigation, test or clinical results for experiment trial at lab. female person, biologist or science research with technology or clipboard for outcome - 顯微鏡 個影片檔及 b 捲影像00:11女人
microscopic view of slow sperm cells swimming, a representation of male fertility or reproductive health - 顯微鏡 個影片檔及 b 捲影像00:09
b/w 1940s close up scientist looking into microscope in laboratory / industrial - 顯微鏡 個影片檔及 b 捲影像00:01
science, smile and microscope with the face of a woman in a laboratory for research and innovation. medical, pharmaceuticals and a happy young scientist in a lab for discovery or breakthrough - 顯微鏡 個影片檔及 b 捲影像00:05女人
aspergillus fungus, coloured scanning electron micrograph (sem). these are fruiting bodies, or conidiophores.. - 顯微鏡 個影片檔及 b 捲影像00:17
a researcher's hand wearing protective gloves operates an optical microscope while simultaneously inserting a glass slide into the device and adjusting the equipment's focal lens in order to examine minute details. - 顯微鏡 個影片檔及 b 捲影像00:20
study of the types of organisms which cause disease: fungi, bacteria, viruses, rickettsiae, and protozoa. uses animation and photography through a... - 顯微鏡 個影片檔及 b 捲影像00:21
the moon: a giant step in geology - part 22 of 41. documentation of the first lunar landing and rock samples brought back by astronauts have unlocked many mysteries of moon geology. this film shows scientists at houston's lunar receiving laboratory analyz - 顯微鏡 個影片檔及 b 捲影像00:35小行星
flowers at work (3rd edition) - part 5 of 26. animated sequences and live photography clarify the process of pollination and illustrate the functions of the flower's major parts. film examines the roles of wind, insects, and water in achieving cross-polli - 顯微鏡 個影片檔及 b 捲影像00:32種子
asian female agronomist scientists worker using microscope in the laboratory - 顯微鏡 個影片檔及 b 捲影像00:26細菌
medical technician check the patient's blood with advanced technology lab equipment. - 顯微鏡 個影片檔及 b 捲影像00:15體檢
kids learning about science experiments with a teacher in class at school. educator teaching curious young students while conducting a fun chemistry lesson with a microscope in an educational lab - 顯微鏡 個影片檔及 b 捲影像00:16
close-up lab technician in microscope room research and development of antiviral drugs. - 顯微鏡 個影片檔及 b 捲影像00:11