The best answer to the question above would be letter d. The sentence presented which is 'Researchers helped further the biological perspective when they demonstrated that electrical stimulation of the brain could evoke emotional responses in animals.' demonstrates how new discoveries can influence perspectives.
There aren't enough oxygen molecules in the air are higher altitudes
Answer:
protiens: amino acids
lipids: fatty acid and glycerol
carbohydrates: monosaccharides
nucleic acid: nucleotides
Explanation:
The answer to the question is PCR
Dideoxynucleotides are chain-elongating inhibitors of DNA polymerase, used in the Sanger method for DNA sequencing.