Mammals
amphibians
land plants
bacteria
protists
question:
place the above organisms in order of when they first appeared on earth. describe two (2) of the methods used by scientists to arrive at this conclusion.

Cold case files recently began re-investigating an old murder case. the murder took place in the park; a young man, james, was hit over the head with a brick and killed. police suspected the jealous former boyfriend of james' wife, karen. whoever killed james may have washed their hands in a near-by bird bath as detectives found blood in the bird bath. since the murder took place before dna fingerprinting was available, the suspected killer, ronnie, went free. detectives are now reviewing the blood evidence using dna fingerprinting. based on the dna fingerprints of all possible suspects, who is james' killer?

This is the process of making a prediction based on the results of prior observations of similar events.

Development has provided electrically for less money but what may be considered a cause of nuclear power