Answer:
The movement of food through the gastrointestinal tract by the contraction of muscles is called Peristalsis.
<span>The reason why foods such as pineapples, pickles and tomatoes can be treated with temperatures less than 100 is because t</span>hese foods are highly acidic (pH<4.6) which provides a hurdle to microorganims.
Low-acid foods have pH values higher than 4.6, while a<span>cid foods have a pH of 4.6 or lower. They include fruits, pickles, sauerkraut, jams, jellies, marmalades, and fruit butters.</span>
Answer:
The correct answer is option c) "gram-positive streptococci".
Explanation:
Gram-positive bacteria are stained purple by crystal violet coloration, result of the cell wall interaction with the dye. On the other hand, streptococci are spherical-shaped microorganisms linked in a chain or a raw, which also are gram-positive. Therefore, the correct terminology of the bacteria observed in the laboratory will be a gram-positive streptococci.
Answer:
Changing with the climate
Fish make calcium carbonate by combining calcium from seawater with carbonate ions generated from CO2 in their bodies. If the amount of atmospheric CO2 goes up as expected leading to a CO2 increase in the oceans the fish may produce more carbonate ions and thus more calcium carbonate.
Explanation:
