BIOL 1000 Chapter Notes - Chapter 2: Flagellum, Nuclear Membrane, 2.5D
Document Summary
A frog moving and a rock sitting still shows a form of life in the frog and shows the trait of non-living objects such as the rock. This however does not create a big diff. at the molecular level. Types of atoms and molecules found in living an non-living are not too diff. The chem. and physics of biotic forms and abiotic things are similar. 2. 1a- seven characteristics that all forms of life share. Some scientist consider a virus abiotic although it shows characteristics of life, b/c they use proteins and other cellular machinery of host cells in order to reproduce. 2. 1b- the fundamental unit of life is the cell. The third theory of cells suggest that cells can only be created from the growth and division of preexisting cells. There must have been a time when no cells or life existed. (figure 2. 5 pg# 26) gives us an analogy of the 4. 6 billion yrs, condensed into 1 yr.
