01:119:116 Study Guide - Midterm Guide: African Trypanosomiasis, Turbellaria, Stapes

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30 Oct 2014

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Taxonomy is the science of naming, identifying, and classifying organisms. Systematics is the scientific study of the diversity of organisms and their evolutionary history. A taxon is a level in which organisms are grouped into. Natural systems are based on evolutionary relationships. Artificial systems are not based on evolutionary relationships (we started out as artificial) Carl von linne (artificial system basing animals on head properties) darwin (emergence of phylogeny) Phylogeny is the complete evolutionary history of an organism. Kinky people come over for great sex. Kingdom phylum class order genus specie. Only the specie level has an attempt for an operational definition. Biological species (earnst mayr) - a group of organisms whose members have the potential to interbreed with each other in nature to produce fertile offspring, but cannot successfully interbreed with members of other species. Morphospecies: species defined based on their anatomical features. Morphology derives from genes interacting with the environment. Monophyletic taxon members are based on homologous characters.

Related Questions

Random, chance events that change allele frequencies are knownas:

A. Gene flow

B. Genetic drift

C. Natural selection

D. Balancing selection

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Question 21 pts

What type of selection acts to maintain the two extremephenotypic variants in a population?

A. Disruptive selection

B. Directional selection

C. Positive selection

D. Artificial selection

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Question 31 pts

Approximately, how much of our DNA is shared with our closestrelatives, chimpanzees?

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Question 41 pts

The large canines of male baboons are likely the result of________, while the fact that some male baboons are very colorfulis probably the result of _______.

A. Mutation; balancing selection

B. Gene flow; sexual dimorphism

C. Male competition; female choice

D. Mate choice; genetic drift

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Question 51 pts

Negative assortative mating results in an increased frequency ofhomozygous genotypes within a population.

True

False

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Question 61 pts

Genetic evidence suggests that humans and Neandertals neverinterbred.

True

False

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Question 71 pts

The specific variant of the FOXP2 gene associated with languageacquisition in humans is found in both humans and Neandertals.

True

False

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Question 81 pts

Industrial melanism describes the change in moth color from paleto dark after pollution from factories resulted in coating treetrunks with a layer of dark soot. Which statement is trueconcerning industrial melanism?

A. After pollution levels increased, all moths became darkercolored because soot got on their wings

B. The dark moths survived better after pollution levelsincreased because they were not poisoned by the pollutants

C. Individual moths changed their color in response to thepollution

D. Dark moths were present in the population before pollutionlevels increased

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Question 91 pts

Patterns of evolution can be seen above the species level

True

False

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Question 101 pts

Inbreeding is problematic because it increases the probabilitythat offspring inherit two copies of a recessive mutation thatcauses disease.