Organic material.................
RNA is a polymer with a ribose and phosphate backbone and four different bases: adenine, guanine, cytosine, and uracil. The first three are the same as those found in DNA, but in RNA thymine is replaced by uracil as the base complementary to adenine.
Answer:
Ribosomes are complex machinery in the cells that are responsible for making proteins. Then, through another process known as translation
Explanation:
read’ the mRNA, and follow the instructions, creating the protein step by step. The cell then expresses the protein and it, in turn, carries out its designated function in the cell or the body.
I believe that the central stalks are modified stems used for water storage and spines are modified leaves used for protection. Desert environment is normally hot and warm and therefore plants and animals have to have a mechanism to conserve water, the plants are very different such that they are often swollen, spiny, and have tiny leaves that are rarely bright green. These are as a results of adaptations to challenges of the desert.