Chapter 14 Flashcards
belief that living things could come from non living things
spontaneous generation
living things come from living things
biogenesis
what is this experiment?
goose-neck flasks
what did the goose-neck experiment prove
spontaneous generation is not real
who made the goose-neck flasks experiment
Louis Pasteur `
isotopes that are unstable and ‘decay’ over time
radioactive isotopes
time it takes for a radioactive isotope to decay by half
half-life
half-lifes are ___
the same
3 gases in the early atmosphere
nitrogen, ammonia, and methane
who hyptohesized about possible gasses in prebiotic atmosphere
alexander oparin
who test the hypothesis about gasses in prebiotic atmosphere
Miller and Urey
droplets of differnet types of irregulary shaped molecules
coacervates
round, usually from one tye of molecules
chemcial reactions occur here more than in water
microspheres
prokaryotic inntracellular parasites eolved into various cell organelles; evidence in mitocondira and chloroplasts
endosymbiosis
3 charcteristics of 1st cell
anaerobic
heterotrophic
prokaryotic