The solar system is about how many years old?

a. about 12 billion
b. about 4.6 billion
c. 750 million
d. 400 million
e. 200 million


Answer: b

Biology & Microbiology

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A challenge to traditional (pre-1860) ideas about species came from embryology, when it was discovered that _____.

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What is recombinant DNA technology?

What will be an ideal response?

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Poor farming practices, such as plowing land straight up and down a hill, led to the formation of the Providence Canyon in Georgia in a process called _____.

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If you commit a crime, you need to make sure that you do not leave even the smallest speck of blood, hair, or other organic matter from your body. If you do, the DNA in this material can be amplified by ________, subjected to genetic analysis, and used

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