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AP Bio U6

evolution

QuestionAnswer
Name the first line of evolution that supports evolution as descent with modification fossil evidence showing changes in species composition over geologic time
Name the second line of evolution that supports evolution as descent with modification similarities in anatomical structures of living species and fossils
Name the third line of evolution that supports evolution as descent with modification direct observation and experimentation
Name the fourth line of evolution that supports evolution as descent with modification pattern of similarities and differences in DNA sequences
Name the fifth line of evolution that supports evolution as descent with modification patterns of similarities and differences in amino acid sequences
How old is the Earth? 4.6 billion years old
What is the geologic timeline based on? geology, climate, and the evolution of life
When did the common ancestor of multicellular life evolve? 1.5 billion years ago
What is the oldest age? Precambrian
What is the second oldest age? Paleozoic
What is the third oldest age? Mesozoic
What is the fourth oldest age? Cenozoic
When did vertebrates evolve? Palezozic
When did the first eukaryotes evolve? Precambrian
When did the primates evolve? Cenozoic
When did flowering plants evolve? Mesozoic
What does radiometric dating determine? the absolute age of rocks
What does radiometric dating base their findings on? constant decay of radioactive isotopes
What are isotopes? elements with different atomic masses due to variations in the number of neutrons
Name the carbon isotopes Carbon-12, 13, and 14
What does it mean when an isotope is stable? does not decay
What is the most stable carbon isotope? Carbon-12
What does Carbon-14 decay to? nitrogen
What is the amount of time Carbon-14 takes to half decay called? Half-life
What two types of rocks are used for radiometric dating? volcanic and metamorphic
How old do isotopes' half-life have to be to be used for radiometric dating? more than one billion
What is relative dating used to determine? sequence of events in the ancient past, but with no dates
What does the law of superstition state? rock layers are deposited in chronological order
What complicates the layering or rocks? tectonic plate movement and erosion
What does the theory of plate tectonics explain? Earth's crust is broken into about a dozen plates that interact with each other
What do fossil records support the claim of? species composition change over time
Do most organisms fossilize? no, most decompose
What do molecular biologists compare? DNA and amino acid sequences in living species and fossils
What do paleontologists compare? anatomical differences and similarities in fossils and living species
What are derived anatomical structures? structures that evolved after the most recent common ancestor of land and marine mammals
What are homologous structures? fossils that have similar structure
Who developed the classical classification system? Carolus Linnaeus
What is convergent evolution? unrelated organisms evolve similar things
What are analogous structures? similar function but not structure
Created by: Lilly_Floyd
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