Two very similar cricket species in the Amazon basin occur on opposite sides of the Amazon river (crickets can’t swim). What type of speciation process probably caused them to split into two forms? Group of answer choices a. sympatric b. allopatric c. reinforcement d. fusion e. stable hybrid zone

Two very similar cricket species in the Amazon basin occur on opposite sides of the Amazon river (crickets can’t swim). What type of speciation process probably caused them to split into two forms? Group of answer choices a. sympatric b. allopatric c. reinforcement d. fusion e. stable hybrid zone

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter20: Speciation And Macroevolution

Section: Chapter Questions

Problem 4TYU: The first step leading to allopatric speciation is (a) hybrid inviability (b) hybrid breakdown (c)...

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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

Two very similar cricket species in the Amazon basin occur on opposite sides of the Amazon river (crickets can’t swim). What type of speciation process probably caused them to split into two forms?

Group of answer choices

a. sympatric

b. allopatric

c. reinforcement

d. fusion

e. stable hybrid zone

Definition Definition Process by which new species arise. This occurs when populations of a species become isolated and diverge, developing unique traits through natural selection, genetic drift, or other mechanisms. Over time, these differences accumulate until the populations can no longer interbreed and are considered separate species.

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