Answer:
Nucleotides are organic molecules consisting of a nucleoside and a phosphate. They serve as monomeric units of the nucleic acid polymers deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), both of which are essential biomolecules within all life-forms on Earth.
Explanation:
1. electrical signals travel toward the heart. 2. signal received by the atrioventricular node. 3.signal by the nodes in the atrium. 4.the atria contracts. 5. signal transferred to the ventricles. 6. the ventricles contract.
Where is the model? There is no picture.
Answer:Economy
Explanation: it’s the most logical answer
The correct answer is bulimia.
Bulimia is an eating disorder where a person eats as much food as they can, only to throw up everything they have eaten - they induce themselves to vomit to get rid of all the food they took.
Anorexia doesn't necessarily involve vomiting. Hypertension is high blood pressure. Obesity refers to extremely overweight people.