Until very recently, it was thought that peptic ulcers were caused by stress, spicy foods, alcohol consumption, and excess stomach acid production. why was it controversial to suggest that a bacterium could be a root cause for peptic ulcers?
until very recently, it was thought that peptic ulcers were caused by stress, spicy foods, alcohol consumption, and excess stomach acid production. why was it controversial to suggest that a bacterium could be a root cause for peptic ulcers?

(drag each tile to the correct identify which questions can be answered by what can be answered by science or which cannot. -is it right or wrong to use genetic engineering to produce new food products? -what are the most common social settings that tend to produce accomplished artists? -if a new gene is added to the genome of a tomato species, will that species be more resistant to insects? -should humans use biotechnology to bring extinct organisms from the fossil record back to life? -do the types of organisms found in the fossil record appear in consistent sequences in different parts of the world? -are michelangelo's paintings more impressive than rembrandt's?

Q: a: in sexually reproducing animals, once fertilization of the egg takes place, the exists as a single cell until cell division begins

With the word calcite wich completes the analogy mineral, erosion, marble, or aragonite