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Unit 16 LE Vocab

Evolution

TermDefinition
Common Ancestor a past relative shared by different species
More recent common ancestor an ancestor that lived in more recent time than another
Adaptation an inherited characteristic that improves an organism's ability to survive and reproduce in a particular environment
Theory of Acquired Characteristics Lamarck's theory that by using or not using body parts, an organism develops characteristics that can be passed on to offspring
Why Lamarck's Theory was Wrong acquired traits can only be passed to offspring if they alter the DNA of the gametes
Descent with modification as the descendents of the earliest organisms spread into various habitats over millions of years, they accumulated different modifications to diverse ways of life.
Evolution all of the changes that have transformed life over an immense time
4 types of evidence for evolution fossils, comparative anatomy, comparative embryology, comparative biochemistry
types of structural evidence of evolution fossils, anatomy, embryology
types of molecular evidence for evolution DNA sequences, amino acid sequences, DNA fingerprints
the type of evidence for evolution that is most accurate molecular evidence
Natural Selection the process by which evolution occurs
The 4 parts of the Theory of Natural Selection variation, overproduction, survival of the fittest, speciation
how variations occur in a population mutations and recombination during meiosis, random fertilization
Factors that speed up evolution sexual reproduction, changing environment, many offspring produced at once
overproduction all species tend to produce more individuals than the environment can support so some of them will survive
Survival of the Fittest individuals that have the traits best suited for their environment will survive, reproduce, and pass on their genes and associated traits to the next generation
Created by: nldenissoff
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