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Unit 4 Evolution Chapter 14 History of Life


the principle which states that all living things come from other living things, seems very reasonable to us today

Spontaneous Generation

livings things could also arise from nonliving things


the length of time it takes for one-half of any size sample of an isotope to decay to a stable form


for an RNA molecule that can act as a catalyst for their own replication


a related group of unicellular organisms, many of which thrive under extremely harsh environmental conditions


CO2 serves as a carbon source for the assembly of organic molecules


a group of photosynthetic, unicellular prokaryotes


a large body of evidence suggests about 2.0 billion and 1.5 billion years ago, a type of small aerobic prokaryote was engulfed by and began to live and reproduce inside of a larger, anaerobic prokaryote

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