Answer:
Hey the answer is C Absolute dating.
Absolute dating uses the measurement of carbon isotopes which is quite similar to radioactive dating in fact its so similar they call it radiocarbon dating.
Explanation:
Hope this helped.
Amoeba feeds on microscopic organisms such as single-celled algae and bacteria.
This condensation reaction is similar to that in which a peptide bond is formed between two amino acids (Chapter 3). Thus a single nucleic acid strand is a phosphate-pentose polymer (a polyester) with purine and pyrimidine bases as side groups. The links between the nucleotides are called phosphodiester bonds
I would say medicine that makes the immune system less effective so the likelihood of the immune system attaching the organ are decreased. Or the last option.