Solution for problem 3 Chapter 3
Women in the late 1890s were terrifi ed about the possiblemisuse of the new Rntgen x
Modern Physics for Scientists and Engineers | 4th Edition
Women in the late 1890s were terrifi ed about the possiblemisuse of the new Rntgen x rays. What use doyou think they envisioned?
Unit 6 - Cell Structures & Organelles Introduction to Cell Biology • Cell biology - 300 year old field of the fundamental units of life, first studied by 17th century microscopists. • Robert Hooke 1665: observed cork (dead plant tissue) and noticed small blots. Named them cella, which meant small room. • Anton van Leeuwenhoek 1674: observed pond water, called them “animalcules”. Original samples were determined to be algae later. • The formation of cell theory 1838-1839 • Matthias Scheiden (botanist) and Theodor Schwann (zoologist). • All living beings are composed of cells. • Cells are independent units. • Cells come from pre-existing cells through division. • When it first appeared, cell theory was a controversial th