The movement of food from the stomach into the esophagus is usually prevent by the sphincter
Answer:
what are two parts of the mitochondria?
Mitochondrial matrices and cristae
Explanation:
Mitochondria matrices makes up the spaces in-between the inner membrane while the mitochondria cristae resulted as a result of folding inwards of the inner membrane.
The situation would be that, in a sealed tube, there are 3 to 4 nails inside and a certain amount of calcium chloride was added. After three days, there will be no changes to be observed in the first tube since the oxygen is not enough to initiate a change and there is no presence of water. For the second test, the same situation is made but boiling water was filled in the tube. For this, no changes would still be observed since there is no moisture. For the last test, the same situation as the first but it is filled halfway with water. After 3 days, rust would be observed on the nails. In order for rust to happen, there should be water and oxygen. The oxygen in the early atmosphere of the Earth would react with iron present in the oceans thus producing iron ores.
B would be the closest thing to wht you are looking for.
the observable universe is estimated to contain 200 billion to two trillion galaxies.
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Answer:
<h3>True</h3>
Explanation:
Topography is a detailed map of the surface features of land.
