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Home Q & A Board Biology-Related Homework Help Zoology and Botany (Moderator: ehd123)
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Midnightcharm Midnightcharm
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12 years ago
A) A branch point represents a split between two phyla
B) A branch point represents a gene duplication event
C) A branch point represents a place where one species branches off from another
D) A branch point represents the absolute time at which two evolutionary lineages split from a common ancestor.
E) A branch point represents a point at which two evolutionary lineages split from a common ancestor
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wrote...
#1
12 years ago
E. Because they all branch from common ancestors...I don't think it'd be the absolute time either, because the absolute time that a species split is hardly ever known....
wrote...
#2
12 years ago
(E) :

A phylogenetic tree is method used to objectively determine:

1. common ancestry
2. genetic differences between species (usually in % form)
3. can hint to a time-line in which one species branched to form another under various environmental/genetic impacts.
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