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.
Wind produces the energy, initial motion and direction of the surface current of the ocean.A<span>n </span>ocean current<span> is a seasonal directed movement of seawater.
</span>Surface ocean<span> currents are primarily </span>affected<span> by </span>wind. The Gulf Stream is example of it. <span>Trade </span>winds<span> push </span>water<span> along the top of the </span>ocean<span> and this results in formation of surface currents.</span>
Answer:
A
Explanation:
are attracted to other types of particles.
The purpose of the Open Door Policy was to collaborate with other nations to maintain a common price level for free trade in China. The Open Door policy started in 1899. The correct answer is B.