Answer:
Ribonucleic acid is a polymeric molecule essential in various biological roles in coding, decoding, regulation and expression of genes. RNA and DNA are nucleic acids, and, along with lipids, proteins and carbohydrates, constitute the four major macromolecules essential for all known forms of life. Like DNA, RNA is assembled as a chain of nucleotides, but unlike DNA, RNA is found in nature as a single strand folded onto itself, rather than a paired double strand.
Explanation:
might want to change up the wording
Answer:
A. 17,100
Explanation:
The half life of carbon-14 is around 5,700 years. When the shell contains 50% of its original carbon-14, 5,700 years have passed. 25% means another 5,700 years have passed, meaning 11,400 years in total have passed. 12.5% means another 5,700 years have passed, meaning 17,100 years have passed in total.
Answer;
The above statement is true;
When fasting continues long beyond glycogen depletion, body protein will be broken down to make glucose,
Explanation;
When the body runs low on fuel, it utilizes the stored glycogen in the liver and muscle, which is the primary source of stored energy. The after the depletion of glycogen the body burns fat, and if fasting continues the body begins to break down non essential proteins for energy. protein is the last source of stored energy available to the body.
Answer:
Biomagnification also called food web magnification or food web accumulation is the progressive increase in the concentration of contaminants in organisms as the trophic level increases. These unexpectedly large concentrations are the result of DDT biomagnification up the food web.
Explanation:
