Una onda que se propaga en una cuerda, tiene una longitud de onda de 7 m y una frecuencia de 0.5 Hz. Calcule su velocidad de propagación: V= λ*f

carbohydrates: (starches and sugars) composed of carbon, hydrogen, and oxygen.

lipids: (fats, oils, and waxes) are made of carbon and hydrogen atoms.

nucleic acids: contain hydrogen, oxygen, nitrogen, carbon, and phosphorus. they are polymers of nucleotides. a nucleotide has three parts, a 5-carbon sugar, a phosphate     (-po⬇️4) group, and a nitrogenous base.

proteins: made up of nitrogen, carbon, hydrogen, and oxygen. they are polymers of amino acids.

the answer is d. chordata

not sure if this is what you'r looking for eubacteria and archaebacteria

my teacher would say no s