The answer is "At least 15".
Hola , bueno una portada es la primera plana o la cara principal de algo , en tu portada debes colocar tu nombre el nombre del proyecto , que eres de sexto grado , el nombre de tu profesor , básicamente es la presentación de lo que vas a presentar , es como la introducción.
Answer:
DNA is a long polymer with a phosphate backbone and deoxyriboses. Adenine, guanine, cytosine, and thymine are the four nitrogenous bases. The backbone of RNA is made up of ribose and phosphate. Adenine, guanine, cytosine, and uracil are four nitrogenous bases.
So DNA is two stranded, RNA is single stranded.
Lmk if you need more :)
Explanation:
Spirometry (spy-ROM-uh-tree) is a common office test used to assess how well your lungs work by measuring how much air you inhale, how much you exhale and how quickly you exhale. Spirometry is used to diagnose asthma, chronic obstructive pulmonary disease (COPD) and other conditions that affect breathing
