What is Sympatric speciation? A) When a population is separated from the main group by a barrier and becomes a new species B) When a population mutates into a new species C) When a population develops into a new species without any physical barriers to isolate them

What is Sympatric speciation? A) When a population is separated from the main group by a barrier and becomes a new species B) When a population mutates into a new species C) When a population develops into a new species without any physical barriers to isolate them

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter17: Processes Of Evolution

Section: Chapter Questions

Problem 8SA: Which of the following is not part of how we define a species? a. Its individuals appear different...

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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

What is Sympatric speciation?

A) When a population is separated from the main group by a barrier and becomes a new species
B) When a population mutates into a new species
C) When a population develops into a new species without any physical barriers to isolate them

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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What is Allopatric speciation? A) When a population is separated from the main group by a barrier and becomes a new species B) When a population mutates into a new species C) When a population develops into a new species without any physical barriers to isolate them
The first step leading to allopatric speciation is (a) hybrid inviability (b) hybrid breakdown (c) adaptive radiation (d) geographic isolation (e) paedomorphosis
What is the main difference between allopatric and sympatric speciation?
Which of the following is not an event that can contribute to allopatric speciation? a. A mountain range forms and splits two populations into populations that begin to turn into new species. b. A subset of individuals disperse to a far away island and begin to turn into a new species. c. Two populations breed in the same location but at different times, and therefore begin to turn into two new species. d. A river splits a population into two populations and the two populations begin to diverge on either side of the river. e. All of these are potential contributors to allopatric speciation.
The type of speciation that takes place in geographically overlapping populations is known as ________________________. A. Allopatric speciation B. Sympatric speciation C. Morphological speciation D. Physiological speciation
If the two populations in question 2 are determined to still be the same species, did allopatric speciation occur?
In 350 words, distinguish between sympatric, allopatric and parapatric speciation.
What is required for sympatric speciation to occur? A. Continuous gene flow between different populations B. Geographic separation of populations C. Two populations that are different begin to reproduce and create hybrids D. Emergence of a reproductive barrier
What role does geographic isolation play in the formation of a new species? Group of answer choices A.If two populations become isolated geographically, then the two populations cannot interbreed with one another. There will be gene flow between the two. This will allow the two isolated populations to evolve independently leading to new species. B. If two populations become isolated geographically, then the two populations can interbreed with one another. There will be no gene flow between the two. This will allow the two isolated populations to evolve independently leading to new species. C. None of the answers are correct D. If two populations become isolated geographically, then the two populations cannot interbreed with one another. There will be no gene flow between the two. This will allow the two isolated populations to evolve independently leading to new species.
A defining characteristic of sympatric speciation is a.The appearance of new species in the midst of old ones b.Asexually reproducing populations c.Geographic isolation. d.Large populations
A physical barrier separates a single species, causing two separate populations to form. Over time these two populations adapt to their environments. Eventually, these two populations are no longer able to successfully reproduce with each other. This is known as __________. A. Sympatric speciation B. Allopatric speciation C. Autopatric speciation D. Parapatric speciation
A pair of birds flies to a deserted island and establishes a colony. Over time, this population evolves into a new species. This is an example of a. allopatric speciation. c. sympatric speciation. b. parapatric speciation. d. all of the above.