work of the kidneys - part 17 of 19. describes structure and function of the renal system, and explains how the kidneys maintain uniformity in blood and tissues. demonstrates, with animated drawings and laboratory experiments, the formation of urine, regu - 實驗室老鼠 個影片檔及 b 捲影像00:29
rats are in a cage for sale at a weekly pet market on october 9, 2022 in kolkata, india. galiff street in kolkata is the oldest pet market in west... - 實驗室老鼠 個影片檔及 b 捲影像00:20
pet rats are somewhat of a niche market. but if they all look as cute and cuddly as this one, then they won't be long getting more fans. - 實驗室老鼠 個影片檔及 b 捲影像00:20
women working at various jobs; at a desk in an office, food service, nurse, fashion, childcare, science laboratory. - 實驗室老鼠 個影片檔及 b 捲影像00:29辦公室
dr. paul volberding says the newly developed drug, compound q, is a long way yet between the lab and hiv-positive patients as the drug may be too... - 實驗室老鼠 個影片檔及 b 捲影像00:16
rat with a spinal cord injury able to walk again due to embryonic stem cell research. - 實驗室老鼠 個影片檔及 b 捲影像00:06
a lab rat wearing a mini camera strapped onto its back walks and sniffs down a hallway. - 實驗室老鼠 個影片檔及 b 捲影像00:24