13. What is formed when two or more organs work together to carry out a specific function? (1 point) A connective tissues
B organ systems
C specialized organs
D eukaryotic cells

B

Explanation:

organ system is two or more organs working together to perform a specialized function.

c

explanation:

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.