Answer:
a thick, mucous secretion and active mitosis of epithelial cells
Explanation:
The mucous neck cells of gastric glands serve to secrete mucus. Mucus is a thick sticky secretion that is rich in protein and carbohydrates. Apart from lubricating the stomach lining, its layer serves to protect the cells of the stomach lining from HCl.
To maintain the integrity of the stomach lining, the wore out cells are replaced by the new cells. To serve the purpose, the epithelial cells of stomach lining undergo mitosis and produce new cells to replace the damaged cells.
<u>Answer:</u>
Enzymes 'reduces the activation energy' of both Exergonic and Endergonic Reaction by acting as a catalyst.
<u>Explanation:</u>
- For example, in the case of 'carbonic anhydrase', enzymes act rapidly causing the chemicals to 'react 107 times faster' than they would normally.
- Enzymes are substrate specific meaning an enzyme working on one substance may not work on another.
- Function of the enzyme is identified by its 'shape of the protein' and arrangement of these molecules produces an area called activation site.
Meiosis is used to to make sex cells.
Mitosis is used to make regular cells for you body.
A, the endosymbiotic theory tells us that a looooong time ago, when there were only one-cell organisms, they kind of took in a bacteria. They profited from having a bacteria in it ( and I believe it is believed that this made it possible for organisms to have multiple cells, not sure) and these bacteria became mitonchondria/chloroplasts, thus answer A is the only one that doesn't support this theory.
Other than global warming is Desalinezation.