Answer:
Ulcer
Explanation:
In the index it will most likely be like this
Ulcer, peptic
Ulcer, gastrojejunal
Marble is a nonfoliated rock that forms when heat and pressure change limestone. Marble is formed by evenly distributed pressure.
Answer: A) or the first option.
<span>Both photoautotrophs and chemoautotrophs synthesize organic compounds from (inorganic) carbon dioxide, a process known as carbon fixation. Photoautotrophs get the energy to perform these reactions from light. Chemoautotrophs get it from electron donors such as hydrogen sulfide and ammonia. Cyanobacteria, by contrast, convert nitrogen from the atmosphere into ammonia, a process known as nitrogen fixation.</span>
