Which is one way that ultrasound technology may be used? O repairing fractured bones
O locating misplaced electrical equipment
O cleaning dirty surgical tools
canceling out unwanted noise

Dna has unique properties that allow it to accurately retain genetic information, even after multiple rounds of replication. one aspect of dna that allows it to accurately store genetic information is the base pairing from chargaff\'s first rule of the four nucleotide bases. if the c content of a dna molecule is 22%, what are the percentages of the remaining bases?

Ecologist have observed a sharp increase of sulfur dioxide in the air . what might be a possible consequence of excessive sulfur dioxide in the air ? a. acid rain b. ozone layer depletion c. ozone layer hole d. increase in sea levels

Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi