BIOL 1202 Lecture Notes - Lecture 3: Banded Iron Formation, Space Debris, Dynamical System
Document Summary
All forms of life are rearranged in a highly ordered manner. All forms of life require energy from the environment and uses it. Bacteria - binary fission (asexual reproduction) (does not provide variation) Making adjustments to their structure, function and behavior in response to the changes in the external environment. All organisms increase their size by increasing the size and/or number of cells. Populations of organisms change over the course of generations to become better adapted to their environment. 1. all organisms are composed of one or more cells. 2. the cell is the smallest unit that has the properties of life. 3. cells arise only for the growth and division of preexisting cells i. ii. Every living thing goes back to one origin; the starting cell. Evidence between 3. 5 - 4 billion years ago (bya) Space debris bombarded the surface for the first few hundred million years. No clear fossils have been found in the oldest rocks.
