The Afrikaner population locatedin South Africa is descended from a small numberof Dutch colonist. Huntingdon
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1) Parents from two different species mate and produce a fertileoffspring with a polyploid chromosome number. This is called
allopolyploidy
allopatric speciation
triploidy
mutation selection
autopolyploidy
2)A monophyletic group would be best described as:
a grouping of most, but not all, species descended from a commonancestor
a grouping of all species descended from a common ancestor,including that ancestor
a grouping of all species descended from a common ancestor,excluding that ancestor
a grouping of all species that share a similar set of traits,regardless of whether the traits are homologous or analogous
3) Vicariance refers to:
a pattern of speciation whereby new species evolve reproductiveisolation in sympatry
a kind of speciation where a small group of colonists founds apopulation on an island habitat
a pattern of speciation in which a population is subdivided by ageographical barrier
a technique for constructing phylogenetic trees based onsynapomorphies
Australopithecus afarensis a. is the largest well-studied collection of early hominins. b. is the oldest hominin discovered to date. c. is the smallest least-studied collection of early hominins. d. is onyl found in Souht Africa. e. is the smallest, least studied collection of early hominins, and is only found in South Africa.