Great amount of electromagnetic energy from sun and other bodies in space travel through space. Which is a logical conclusion about electromagnetic waves Energy must be very low

Frequency must be very low

Their wavelength must be very short

these wave can travel without the medium

last option- these waves can travel without the medium

chordata is the answer

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides