DNA<span> is a long polymer with deoxyribose and phosphate backbone. Having four different nitrogenous bases: adenine, guanine, cytosine and thymine. </span>RNA<span> is a polymer with a ribose and phosphate backbone. Four different nitrogenous bases: adenine, guanine, cytosine, and uracil.</span><span />
The correct answer is iodine
Answer:
Depending on their age, size, and activity level, toddlers need about 1,000–1,400 calories a day.
Explanation:
