| A | B |
|---|
| gene therapy | transforming normal genes into human cells that lack them |
| diseases | cured when information from the Human Genome Project is used |
| spontaneous generation | appearance of maggots on rotting meat offered an explanation of this |
| Redi | placed meat in two containers and covered one of them looking for maggots appearance |
| Pasteur | used curve-necked flasks and left them open |
| half lives | used to measure age of fossils |
| amino acid | simple organic compound that may have originated life on earth |
| Miller and Urey | used apparatus to demonstate that life on earth originated with amino acids |
| lightening | electric spark in Miller and Urey's experiment |
| RNA | single stranded, nucleaic acid that can act like an enzyme |
| archae bacteria | scientists thought that first cells resembled this |
| chemosynthetic organisms | when chemicals found in early earth are used to make organic compounds |
| photosynthetic | when sunlight is found in early earth to make organic compounds |
| ozone | layer of atmosphere that protects earth from damaging ultraviolet light |
| amber | example of fossils trapped in tree sap |
| Galapogos | island that Darwin used to observe his theories of evolution |
| Beagle | name of Darwin's boat that he sailed for 5 years |
| ancestor | common to species with different physical aspects |
| evolution | according to Darwin, this is caused by natural selection |
| natural selection | process where organisms with traits well suited to the environment thrive |
| DNA | this is similiar in organisms that have homologous structures |
