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.
the role of plants in carbon cycle
Explanation:
the amount of CO2 found in the atmosphere varies over the course of a year. much of this variation happens because of the role of plants in carbon cycle...respiration occurs all the time, but domains during the colder months of the year, resulting in higher CO2 levels in the atmosphere during those months.
Answer:
carbon dioxide that enters through the leaf
openings
Explanation:
B. organisms can grow. Through the process of mitosis.
