Questions by Alexander Perfilyev

Questions by Alexander Perfilyev

Two species of frogs are unable to mate with each other because they have different mating calls. This is an example of A) genetic drift B) geographic isolation C) none of these D) reproductive isolation

asked Aug 19, 2018

2 answers

5 votes

84.0k views

According to a 2010 public opinion poll, approximately what percentage of americans responded that they had a "great deal" or "quite a lot" of confidence in the criminal justice system

asked Jun 5, 2018

1 answer

0 votes

39.5k views

What did the transcontinental railroad do?

asked Mar 15, 2018

1 answer

2 votes

123k views

Convert 34.2mm to centimeters?

asked Jun 28, 2017

1 answer

1 vote

110k views

Vinnie decorated 72 cookies and 36 minutes. How many cookies did he decorate per minute

asked Apr 23, 2016

2 answers

2 votes

66.1k views

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