Nucleotides form nucleic acids.
Cocaine can be detected in your saliva/blood for anywhere between 12 and 48 hours. It can be detected in your sweat for up to several weeks. For a long time user, it can be found in your hair for years after the user has stopped using the drug.
I positive that the answer id D why because Without<span> them the Earth </span>would<span> be too cold for us, or any other living thing, to survive. Naturally occurring </span>greenhouse gases<span>, such as carbon dioxide and methane, allow solar radiation to reach the Earth's surface, while trapping radiation from the Earth on its way back out to space.
Hope I helped
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Plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar :)
<span>D. inheritance of acquired characteristics
Not:
</span>A. gradualism
<span>B. natural selection </span>
<span>C. selective breeding
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<span>A. giant tortoises
</span>
NOT:
B. fossils of giant sloths
<span>C. fossil shells on top of mountains </span>
<span>D. an absence of rabbits in South America</span>