About 88 percent of geologic time is represented by the time span called the precambrian <span>era.</span>
<span>The continental slope can occur next to the continental shelf.</span>
An increase in the atmospheric concentrations of greenhouse gases produces a positive climate forcing, or warming effect. ... The warming effect associated with carbon dioxide alone increased by 36 percent
Answer:
Nucleic Acids
Explanation:
Nucleic acids are DNA and RNA and they are the molecules responsible for containing the genetic material of all living beings. Thus, DNA and RNA are the molecules responsible for establishing the variability and different characteristics between dog breeds, through the genetic information that each of them houses.
In this case, among the options given in the question above, we can confirm that if Allen has studied the genetic material of dogs to better understand why there are so many different breeds, he must have studied nucleic acids.
