Muscle and nerve cells both contain the complete genome of the organism contained within their DNA. This means that both cells will contain all the same genes including the gene coding for the protein required in the sodium potassium pump. (Note the difference between cellular types and functions is the EXPRESSION of genes is different; all cells share the same genes but do not necessarily express them).
If both cells require the sodium/potassium pump and associated proteins than it is likely the exact same gene. Proteins are created through expression of genes. First the gene (a discrete section of DNA on a chromosome) is transcribed into an RNA message in the nucleus (RNA is similar to DNA and contains just the gene itself. Think of it as a post it note that has been copied from an encyclopedia of genes. Then the RNA is translated into a protein, which is a long chain of amino acids. The particular order and properties of the constituent amino acids that make up the protein cause it to coil up and form a 3 dimensional structure with properties that govern its particular function in the cell. In this case, the protein plays a key role in the sodium potassium pump. Protein synthesis is a fascinating topic and for more information, study up on the central dogma of genetics.
Everything that we eat and drink contains some percentage of water. So, to start, you have to know that the human body has receptors which estimate if we have enough water in our blood and cells in general. From these receptors, the information travels through the neurons to the part of the brain that is responsible for activation of different responses.
The digestive system is important because in its lower parts, liquids are absorbed and inserted in the bloodstream. Then through the bloodstream, they travel to all parts of the body and are absorbed by cells as needed. When blood passes through the body, it gets to the kidneys where water and electrolytes are filtered, reabsorbed if needed and excreted through the urine.
Now, if the brain has a signal that the body has a lack of liquids, it activates hormones which influence the bloodstream in both the digestive and the urinary system. In this case, the digestive system will absorb more liquids from food because the hormones will make the blood vessels in the digestive area larger, and on the other hand, we will produce less urine because the kidneys will get an assignment from the brain to filter liquids, but to reabsorb them again as much as possible.
Answer:
human activity
Explanation:
The wetlands and the coral reefs have gradually been destroyed by the humans and their activity. The wetlands were the first to be under the human influence and getting destroyed, while the coral reefs have come to have similar destiny in the last century. The reasons for the destruction are different. The wetlands have in general been destroyed on purpose, be it because they were epicenter of diseases, for making more land for agriculture, or making more land for settlements. The coral reefs have not been destroyed on purpose, but the human activity has resulted in lot of pollution of the ocean waters, as well as changes in the climate, and the fragile corals can not adapt quickly enough to these changes, so they die out quickly.
Energy is required for the sugar and oxygen to reach their transition state.