Log in
Biology
2
answers
0
watching
74
views

Compare allopatric speciation and sympatric speciation. In youranswer, use the terms: allele frequencies, mutations, selectionpressures, geographical barriers, and reproductive isolation.

Watch
2
answers
0
watching
74
views

For unlimited access to Homework Help, a Homework+ subscription is required.

Unlock all answers

Get 1 free homework help answer.
Already have an account? Log in
Share
Casey Durgan
Casey DurganLv2
28 Sep 2019
Already have an account? Log in
Share

Related textbook solutions

Molecular Cell Biology
8 Edition,
Lodish
ISBN: 9781464183393
Biology: Science for Life with Physiology
6 Edition,
Belk
ISBN: 9780134555430
Concepts of Biology
OER Edition,
Openstax
ISBN: 9781938168116
Biology
2nd Edition, 2013
Openstax
ISBN: 9781947172517
Essentials of Biology
5 Edition,
Mader
ISBN: 9781259660269

Related questions

The Fartberry bug feeds on two species of plants in the Fartberry family: the Stink vine, which fruits in the late spring, and the Toot tree, which fruits in fall. The stink vine is native to the fartberry bugรขย€ย™s habitat, but the toot tree was introduced into the habitat recently. Researchers notice that now, fartberry bugs fall into two groups: some populations which are more fit on stink vine, and some which are more fit on toot tree. If there is assortative mating, this scenario could be an example of which of the following phenomena?

1) disruptive selection that may lead to sympatric speciation

2) directional selection that may lead to allopatric speciation

3) disruptive selection that may lead to allopatric speciation

4) directional selection that may lead to sympatric speciation

5) hybridization that may lead to polyploidy and speciation

QUESTION 5

The vast numbers of finch species on the Galapagos Islands arevery closely related and differ primarily by feedingspecializations. What process best explains this distribution ofspecies?

sympatric speciation

mass extinction

adaptive radiation

polyploidy

10 points

QUESTION 6

Frogs "croak" at night to lure females for mating. Females areattracted only to the song of their species. This is an exampleof

mechanical isolation

temporal isolation

habitat isolation

behavioral isolation

10 points

QUESTION 7

To prepare for a hiking trip in the Appalachian mountains, youbuy several field guides for the region from a used bookstore. Younotice that the older guides list a single species of tigerswallowtail butterfly, Papilio glaucus, and an Appalachianmorph of this species. However, the newest guide list two separatespecies, P. glaucus and P. appalachiensis. Theauthors of this guide state that the biological species concept wasused in determining their classifications. What do you think ledthem to list two separate species of tiger swallowtail?

The discovery that P. glaucus and P.appalachiensis interbreed in the wild

The discovery that P. glaucus and P.appalachiensis have a genomic similarity of 99%

The discovery that P. glaucus and P.appalachiensis do not interbreed in the wild

The discovery that P. glaucus and P.appalachiensis have distinct differences in wingcoloration

10 points

QUESTION 8

A scientist is studying a population of crickets and finds thatthere is variation in the songs used by males to call for mates.Some males call with high pitched, 3 chirp songs and some call withlow pitched, 4 chirp songs. However, offspring from the two typesof males are able to interbreed, so the scientist classifies thepopulation as a single cricket species and goes on to anotherproject. One year later, a mutation arises in a female cricket thatmakes her unable to hear high frequencies. Ten years later, agraduate student returns to the same cricket population anddiscovers that there are now two distinct cricket species in thearea, although they appear morphologically identical. What is themost likely explanation?

Temporal isolation has led to allopatric speciation

Sexual selection has led to sympatric speciation

Habitat isolation has led to allopatric speciation

Gametic isolation has led to sympatric speciation

QUESTION 1

A dam dividing a fish population will likely lead to sympatricspeciation.

True

False

10 points

QUESTION 2

As certain lineages of animals evolved more and more complexbody plans, what has happened to the Hox genes of theseanimals?

The number of Hox genes has been reduced

The more complex the body plan, the greater the number of Hoxgenes.

Complex body plans have more inactive Hox genes

There is no correlation between body plan complexity and Hoxgenes

10 points

QUESTION 3

Which of the following would lead to allopatric speciation?

the colonization of an island by a subset of the mainlandpopulation

a new river channel dividing beetles into two separatepopulations

the extinction of a large proportion of a population, leavingonly distant sub-populations

all of the above

10 points

QUESTION 4

The hybrid sterility of a hinny (cross between a female horseand a male donkey) is an example of

prezygotic isolation

allopatric speciation

sympatric speciation

postzygotic isolation

Weekly leaderboard

Home
Homework Help 3,900,000
Biology 460,000
Start filling in the gaps now
Log in