5 Astronomers often scan the sky using devices called radio
telescopes. What can you conclude about these devices?
A
Titey send radio broadcasts out to distant stars and
planets.
B. They pick up the radio waves emitted by stars.
С
They are less powerful than optical telescopes.
D
They can detect ultraviolet radiation.
Yo

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.