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True [87]
3 years ago
6

Squirrels and other small mammals near Arizona's Grand Canyon are shown to have experienced speciation. Two populations of antel

ope squirrels that were originally a single species became separated by the canyon. Presently, these squirrel populations represent two different species: the white-tailed antelope squirrel inhabits the north side of Arizona's Grand Canyon, and the closely related Harris's antelope squirrel can be found on the south side of the canyon. Which statement BEST explains why the antelope squirrels experienced speciation?
A
The squirrels on each side of the canyon were no longer able to access food at the bottom of the canyon.

B
The squirrels on each side of the canyon were no longer able to access water at the bottom of the canyon.

C
The squirrels on each side of the canyon were no longer able to breed with the squirrels on the other side of the canyon.

D
The squirrels on each side of the canyon were no longer able to communicate with the squirrels on the other side of the canyon.
Biology
1 answer:
Sonja [21]3 years ago
6 0
D because the article says the were departed by the canyon
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Can anyone tell me the ratio of the genotype and phenotype ???
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<h2>Hey There!</h2><h2>_____________________________________</h2><h2>Answer:</h2><h2>_____________________________________</h2><h2>Phenotype:</h2>

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<h2>_____________________________________</h2><h2>Alleles:</h2>

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<h3>MOTHER:</h3>

Mother has cleft chin, since cleft chin is dominant there are two possibilities of her genotype,

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but if we cross the hom.zygous fominant mother to hom.ozygous recessive father we will get all the offsprings with the same genotype phenotype so it is not possibile, So the mother is HETEROZYGOUS DOMINANT Cc

<h2>_____________________________________</h2><h2><u>Question</u>:</h2><h2>_____________________________________</h2><h2>Genotypes of Parents:</h2>

FATHER: cc (Hom.ozygous Recessive)

MOTHER: Cc (Heterozygous Dominant)

<h2>_____________________________________</h2><h2>Punnet Square:</h2>

Picture attached!

Picture no 1: it is the cross between hom.ozygous recessive father and hom.ozygous dominant mother and all the offsprings are same both phenotypic and genotypic way so IT IS NOT POSSIBILE

Picture no 2: Its cross between hom.ozygous recessive father and heterozygous dominant mother and there are hybrid and pure recessive both type of offsprings present thus IT IS POSSIBLE!

<h2>_____________________________________</h2><h2>Genotype Ratio of the Offspring:</h2>

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<h2>_____________________________________</h2><h2>Best Regards,</h2><h2>'Borz'</h2><h2 />

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