<em><u>Nitrogen</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>not</u></em><em><u> </u></em><em><u>a</u></em><em><u> </u></em><em><u>product</u></em><em><u> </u></em><em><u>of</u></em><em><u> </u></em><em><u>photosynthesis</u></em>
True, though the Hadean period is one exception.
I believe the contaminated meat were held at temps below 45 degrees Fahrenheit. hopefully u no the math to figure the c. temp.
)Sexual reproduction maintains a constant level of variation in the population and requires less energy.
A<span>utotrophs differ from heterotrophs in that only autotrophs can make their own food
Hope this helps!</span>
