The major cementing factor(s) in maintaining a long-term relationship is (are) a. proximity and physical attractiveness b. similarity c. proximity d. physical attractiveness

The major cementing factor in maintaining a long-term relationship is similarity. In relationships, similarity in various characteristics such as interests and appearance remains important as relationships tend to grow when the individuals develop and maintain the same interests and continue to share their important principles over time.

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.