Explanation:
If the paramecium was not able to contract its contractile vacuole, it would be in danger of bursting. The cell would not be able to hold too much water. ... When Amoeba is placed in salt water, it will lose water by exosmosis and will shrink.
Answer:
Density = Mass/Volume
Density = 216cm3/64g
Density = 3.375 g/cm3
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Answer:
For growing bacteria it is necessary water, a source of carbon and nitrogen, some inorganic salts.
Explanation:
There are plenty of kind of bacteria, even, all of them need water to dissolved their nutrients and to remove the wastes outside of the bacteria body. The source of carbon could be carbon dioxide for some bacteria that do not need a lot of it. In the other hand, there are other bacteria that are feed based on glucose, fructose or another carbohydrate.
Nitrogen sources normally come from air as gaseous element or some inorganic salts like nitrates.
Other bacteria need specific elements like phosphorous, sulfur, zinc, copper, etc.
Hope this info is useful.
B. the oceans is the largest ecosystem.
Answer:
Meiosis: One diploid cell → four haploid cells.Jun 27, 2013
Explanation:
