Answer:
b
Explanation:
half of the original c-14 isotope remain in the fossil 5730 years after the organisms died. 1/4 of the original isotope will remain 5730 years after that or 11460 years after the organism died.
Proteins and polypeptides are different because of their structure makeup. Proteins do not have an amino acid as their monomer. A polypeptide is made up of many polymer bonds, where a protein is not. The peptide bonds are made of amino acids, which again, proteins do not have.
<span>The correct answer is C) photosynthesis and respiration. It powers almost all trophic chains and food webs on the Earth is called Photosynthesis. The process which organisms oxidize organic molecules and derive energy known as ATP from the molecular bonds that are broken is called respiration.</span>
<span>The mechanism of descent with modification is known as "evolution". This idea of descendants of adult species being similar in most ways to their ancestors but slightly modified in some way is the basis of an entire belief system for some. For example it is not unreasonable to believe over time and generations, humans may develop an extra or altered digit on the hand to accommodate cell phone usage.</span>
