the process of change that has transformed life on earth from its earliest beginnings to the diversity of organisms living today
biology
the scientific study of life
eukaryotic cells
subdivided by internal membranes into various membrane- enclosed organelles; largest organelle is the nucleus and have other organelles in the cytoplasm
prokaryotic cells
the DNA is not separated from the rest of the cell by enclosure in a membrane-bounded nucleus (its also smaller)
genome
the entire library of genetic instructions that an organism inherits; There are about 75,000 kinds of proteins
negative feedback
most common form; accumulation of an end product
of a process slows that process
Ex: ATP production of excess.
positive feedback
less common; the end product speeds up its
production ; Ex: blood clotting
taxonomy
the branch of biology that names and classifies species, formalizes this ordering of species into groups of inc. breadth
Three Domains of Life
Bacteria, Archaea, eukarya
Five Kingdomes
Plants, animals, fungi, single-celled eukaryotes, prokaryotes (bacteria and archaea)
Charles Darwin
theory of natural selection
deductive reasoning
reasoning from a asset of
specific observations to reach a general conclusion