Answered: Among the descendants of the ancestor…

Among the descendants of the ancestor common to lineages A and B, how many total extinction events have occurred in the past 1 million years?

Curren'S Math For Meds: Dosages & Sol

11th Edition

ISBN:9781305143531

Author:CURREN

Publisher:CURREN

Chapter5: Unit, Percentage, Milliequivalent, Ratio, And Household Measures

Section: Chapter Questions

Problem 17SST

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Concept explainers

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.

Question

Among the descendants of the ancestor common to lineages A and B, how many total extinction events have occurred in the past 1 million years?

Common
ancestor of
lineages A
and B
23.6
Lineage A
Lineage B
†
t
+
3
2
Millions of years ago
t
0

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