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BIO112 Spring 2024 Exam 1 Terms /updated 2025 version
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BIO112 Spring 2024 Exam 1 Terms /updated 2025 version
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3/2/25, 12:02 PM BIO112 Spring 2024 Exam 1 Terms /updated 2025 version Flashcards | QuizletBIO112 Spring 2024 Exam 1 Terms /updated 2025
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Terms in this set (110)
general approach used to determine the age of
radiometric dating specimens using the rate of decay of radioactive
isotopes
a chemical analysis used to determine the age of
radiocarbon dating organic materials based on their content of the
radioisotope carbon-14
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, 3/2/25, 12:02 PM BIO112 Spring 2024 Exam 1 Terms /updated 2025 version Flashcards | Quizlet
radiometric dating method often used in the
assessment of volcanic intrusions in sedimentary
potassium-40 dating layers. It is based on measurement of the product of
the radioactive decay of an isotope of potassium (K)
into argon (Ar).
length of time required for half of the radioactive
half-life
atoms in a sample to decay
Pattern of evolution in which long stable periods are
punctuated equilibrium
interrupted by brief periods of more rapid change
A burst of evolutionary origins when most of the
major body plans of animals appeared in a relatively
Cambrian explosion
brief time in geologic history; recorded in the fossil
record about 545 to 525 million years ago.
macroevolution Evolutionary change that produces new species
Evolutionary change/adaptation below the species
microevolution level; change in the allele frequencies in a population
over generations.
Linnaeus Father of taxonomy
Proposed theory that organisms pass on traits they
Lamarck
acquire in their lifetime.
catastrophism: believed that the extinction of species
Cuvier
was caused by catastrophic events such as floods
scientists who said the world was old and slowly, but
Lyell and Hutton
constantly changing
an English economist and demographer; suggested
populations have a potential for increase that exceeds
Malthus
the actual rate of increase, and the resources for the
support of increase are limited
process by which descendants of ancestral organisms
descent with modification adapt to different/changing habitats and accumulate
structural and functional adaptations
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