Answer:
Ribose sugar
Explanation:
Ribose sugar is the 5 carbon sugar that is a structural component of RNA which is different from the sugar that is found in the DNA. In DNA deoxyribose sugar is present in which the 2' hydroxyl group is absent and is replaced by a hydrogen atom.
RNA is made up of nucleotide monomers which consists a ribose sugar, a phosphate group and a nitrogenous base attached to the sugar. In RNA in place of thymine nucleotide, another nucleotide uracil is present. Transcription is the process by which DNA is converted into RNA.
The new nucleotide adds towards 3' end of growing nucleotide by a phosphodiester bond. So the right answer is ribose sugar.
Cancer cells are cells that basically bypass any sort of regulatory processes in the cell cycle (and mitosis - the splitting of the cell). This leads to uncontrollable cell growth/duplication which hence leads to more and more cancerous cells. Cancer itself is so hard to cure for a couple of different reasons. If the cells are in the form of a benign tumor, that is a tumor that does not spread from its original infected tissue, it should be "easy" to remove with surgery. However, if it metastasizes, or spreads into surrounding tissues through the lymph or blood systems, then it becomes even harder to remove because of its far reach and complex structure. Also, cancer cells can be simply described as normal body cells that have gone rogue. That being said, things such as antibiotics, that are designed to get rid of foreign bodies, cannot get rid of cancerous cells without getting rid of most of your regular body cells as well simply because they cannot tell the difference.
Hope this helps :)
Answer:
Villi are finger-like projections.They increase the surface area of inner walls and helps alot in absorption of digested food.
Explanation:
