It is apart of cellular DNA an ATP, and is a major component of bones and teeth, it is often only available in limited quantities in the the environment.
All food chains begin with producers
3<span>. </span>Populations<span> and </span>samples<span> ... Although a statistician should clearly </span>define<span> the </span>population<span> he or she is dealing with, they may not be able to enumerate it exactly. For instance, in ordinary ... For taking a</span>sample<span> from a long </span>list<span> a compromise between strict theory and practicalities is known as a systematic random </span>sample<span>.</span>
Answer:
B
Explanation:
Organic chemistry is defined as the study of carbon compounds.
Organic compounds were first thought to be compounds that could only be produced by living organisms. This theory was disproved when scientists synthetically made urea from ammonia in a lab.
Organic compounds are now known as compounds where carbon atoms are covalently bonded to other elements. This could be hydrogen or oxygen (in the case of lipids or carbohydrates) or nitrogen (in the case of amino acids).
