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BILD 3 midterm 1

Terms in this set (17)

Transitional Form
An organism that has features intermediate of its ancestors and progeny.
T or F: An individual with many brothers and sisters but no personal offspring has absolutely no fitness
False
shuffling the deck: creating new cards is analogous to
sex: mutation
How do fitness, adaptation, natural selection and evolution relate?
Fitness is the means of measuring reproductive success.
Adaptation yields the end result of evolution, natural selection is the process of evolution.
In a particular species, it can choose to reproduce sexually or asexually. If it is living in a relatively stable, resource filled environment, which is the most beneficial for the species to choose>
Asexual reproduction
Linnaeus
Taxonomy
Malthus
Economics
Lamarck
Catastrophism, acquired traits
Hutton and Lyell
uniformitarianism and gradualism
Cuvier
extinction/ paleontology
Gradualism
The theory that new species evolve from existing species through gradual, often imperceptible changes rather than through abrupt, major changes
Why does blending inheritance not accurately account for the evolution of adaptations?
Any useful mutations would dilute out
T or False: for natural selection to occur, an environmental shift results in phenotypic change
False
Negative Frequency dependent selection
The fitness of a phenotype decreases as it becomes more common
Gene Flow
The transfer of alleles from one population to another (think of a mountain dividing to species of birds)
Nonsense point mutation
codes for stop codon
missense point mutation
code for different amino acid
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