What does food pass through in order to get from the esophagus to the stomach?
a. sphincter...
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Biology, 21.06.2019 21:30
Ascientist discovers a new body between the orbit of neptune and the kuiper belt. the object is round and travels in an orbit around neptune with other space objects. the scientist claims that she has found a new dwarf planet. where is the scientist’s error?
Answers: 1
Biology, 22.06.2019 18:30
There are few cells in the body that do not undergo mitosis: most somatic cells divide regularly, some more than others. take for example the cells that line the digestive tract. these cells must be frequently replaced because they are constantly eroded by the movement of food through the tract. what mechanism(s) is/are in place to ensure that these cells are exact copies of the mother cell
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Biology, 22.06.2019 20:40
Lumps of iron and manganese ore called can be harvested from the seafloor near underwater volcanoes.
Answers: 1
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