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9 Cards in this Set
- Front
- Back
Structures called_____, capable of growth and metabolism, have been produced in the laboratory. Structures like these may have eventually evolved into heterotrophic prokaryotes.
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Protocells
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Organisms known as ________________ are chemosynthetic autotrophs that survive in harsh conditions where there is little sunlight or oxygen
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Archaebacteria
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The ancient belief that nonliving materials could be transformed into living organisms was referred to as _________
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Spontanious generation
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the idea that life arises only from life is referred to as ________________
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biogenesis
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any indirect evidence left by an animal and may include a footprint, a trail, or a burrow.
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Trace fossils
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when minerals in rocks fill a space left by a decayed oranism, they make a replica, or ________, of the organism
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Casts
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A ____________ forms when an organism is buried in sediment and then decays, leaving an empty space.
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Molds
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____________-minerals sometimes penetrate and replace the hard parts of an organism.
_____________-void spaces in original organism infilled by minerals |
Petrified/Permineralized fosslis
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At times, an entire organism was quickly trapped in ice or tree sap that hardened into amber
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Amber-Preserved or frozen fossils
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