Chemistry, 24.10.2019 18:43 gabbyypadron
Read these sentences from the text. "some [scientists] said dogs evolved as two separate species 135,000 years ago in two parts of the world. now, researchers say, those theories are wrong." what evidence in the text supports the conclusion that those theories are wrong? each year we spend billions of dollars on our canine pals. asian wolves came to the americas with christopher columbus in 1492. scientists found that the genes of the ancient american dogs were similar to the genes of dogs born in europe and asia. five female asian wolves developed an uncanny ability to pick up human signals.
Answers: 2
Chemistry, 22.06.2019 04:00
You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present
Answers: 1
Chemistry, 22.06.2019 07:20
Why does his teacher ask him to balance the equation by including the correct coefficient
Answers: 1
Chemistry, 22.06.2019 07:30
The volume of helium in a blimp is 6.28 x 10^9 millimeters. the density of helium in the blimp is .1786 kilogram/meter^3. find the mass of the helium in the blimp.
Answers: 1
Read these sentences from the text. "some [scientists] said dogs evolved as two separate species 135...
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