Answer:
DNA contains four types of nucleotide. These are adenine, thymine, guanine, and cytosine. Uracil is the fifth and final nucleotide but it is only present in certain forms of RNA. So back to the question nucleotides are the basic structural unit of nucleic acids.
Answer:
You lose your pH levels because your heavy breathing is creating more CO2.
Explanation:
Carbon pollution in the atmosphere means the ocean will become more acidic , harming marine life in the process
Speciation, the formation of new and distinct species in the course of evolution.
Speciation is the process by which new species form. It occurs when groups in a species become reproductively isolated and diverge.