BIOLOGY 151 Lecture Notes - Cell Theory, Zoonosis, Botany
Document Summary
Chapter #1: biology and the tree of life. Must produce and use energy (sun = biggest energy source) Cell theory all organisms are made of cells and all cells come from preexisting cells (mid 1600s: robert hooke (english) 1665, examined cork trees and found cells (30x) Anton van leeuwenhock (dutch) succeeded hooke by creating more powerful microscopes, discovered unicellular organisms and described the structure of human blood and sperm cells (300x) 1858 origin of species (sold out in one day) Species are related by common ancestry: revolutionary theory because up until that point species were considered to be created by a divine being. September 5th: certain versions of heritable traits help individuals survive better or reproduce more than do other versions. Theory explanation for a general class of observations. Cells bounded by plasma membranes and are found in aqueous solutions: reproduce asexually.
