The correct answer is A
The scientist can determine that this nucleic acid is a DNA molecule, because it contains Thymine, which does not occure in the RNA molecule. The RNA molecule contains Adenine, Guanine and Cytosine just like the DNA, but unlike the DNA it contains Uracil, not Thymine.
Secondly, the scientist can say with certainty that this DNA molecule is surrounded by a nucleus based on the structure of the nucleic acid described. Only eukaryotic cells have ladder structure. The prokaryotic cells have circular DNA and do not have any organelles, like the nucleus. Therefore, from the ladder structure of the DNA the scientist can see that the cell has a nucleus.
the molecules pass the electron they pump hydrogen ions from one side of the membrane to the other. The high concentration of hydrogen ions pumped into the inner thylakoid space (the thylakoid lumen) can then be used to make ATP by a process called chemiosmosis.
The answer to this is C.
In the small intestine, it consists of duodenum and ileum in simple. The duodenum is where most food is digested. Enzymes are secreted and they break down complex and insoluble food into simple small soluble molecules.
After digestion, the food will be absorbed into the body in the ileum. The food flow from the ileum into the body cells by diffusion and active transport. Villi is also present in the small intestine to help the absorption process. After absorption, the nutrients would be transferred into the cells that needed.
The rest of the food that is not absorbed is trasferred to the large intestine to re absorb the water. After that, they're feaces and they'll be egested
Answer:
Cell division is the process in which one cell, called the parent cell, divides to form two new cells, referred to as daughter cells. How this happens depends on whether the cell is prokaryotic or eukaryotic. Cell division is simpler in prokaryotes than eukaryotes because prokaryotic cells themselves are simpler.
Explanation:
took this subject and passed
This depends a lot on the area in which the vacant lot is located, but in general it can be assumed that many plans would come up through cracks in the concrete.
