The answer would be between b and d but i would go with d
The exact number of characteristics that define a living thing are 5. 5 unique characteristics are used to determine whether or not something is a living being.
Reduced precipitation can lead to limited water availability by reducing the amount of rain that we get therefore there is less water. Without the rain the earth would eventually dry out and there would be no more water to use.
Answer:
DNA is a polymer. The monomer units of DNA are nucleotides, and the polymer is known as a "polynucleotide." Each nucleotide consists of a 5-carbon sugar (deoxyribose), a nitrogen containing base attached to the sugar, and a phosphate group.
Explanation:
