The correct answer is dynamo theory. The theory that explains the source of Earth's magnetic field is the dynamo theory. This theory proposes the mechanism of a celestial body such as Earth to generate magnetic field.
D
Low-pressure systems are associated with clouds and precipitation that minimize temperature changes throughout the day, whereas high-pressure systems normally associate with dry weather and mostly clear skies with larger diurnal temperature changes due to greater radiation at night and greater sunshine during the day.
<span>I belive the answer is D. Burbank's process did not involve environmental pressures to shape the outcome.
Burbank process is similar to natural selection because he will select the potato based on some traits. The trait would be big potato and resistant to disease. The genetic makeup will also favor those with the selected trait. This process should be faster.</span>
I believe that the answer is D. If something has evolved, it can not interbreed with its old species. I think this is right!
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A person with darker skin produces more melanin. Those are the dark brown pigments that come from your skin, hair, or eye color.
Hope that helps. -UF aka Nadia