Question

1. the elements represented by letter b are a) carbon, sulfur, and oxygen b) carbon, hydrogen, oxygen, and nitrogen c) oxygen, nitrogen, carbon, and phosphorus d) carbon and hydrogen lipids building blocks: carbon, hydrogen, and oxygen necessary elements: carbon, hydrogen, oxygen functions: serve as sources of stored energy and as components of cell structures carbohydrates building blocks: simple sugars necessary elements: carbon, hydrogen, and oxygen functions: serve as components of cell structures and as catalysts proteins building blocks: amino acids necessary elements: carbon, hydrogen, oxygen, nitrogen functions: serve as components of cell structures and as catalysts

Explanation:

Los carbohidratos están compuestos por carbono, hidrógeno y oxígeno. Sus bloques de construcción son los azúcares simples.

Answer:

D. carbono y hidrógeno