The people of Finland, who are secluded to some degree from the rest of the world by water, develop certain diseases due to the lack of genetic material from other ethnicities and races.
Physical barriers prevent fish from one stream from mating with fish from another stream, leading to a less varied gene pool among those fish. As time passes, the fish become unable to successfully mate with other groups.
A mountain range prevents two types of goat from mating, causing the gene pool to become less varied.<span>
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Heat can affect the three-dimensional shape of a protein (called tertiary structure). Enzymes are proteins, and they can only function properly within a certain temperature and pH range. A temperature different than their ideal temperature can make them less efficient or even prevent them from working at all.
Answer: Silicon
Explanation: Silicon has less electrons than phosphorus.
No. It will not be possible to precipitate all lead ions from a solution by precipitating them with chloride.
<h3>Precipitation reactions</h3>
When a chloride salt is used to precipitate lead ions from a solution, an insoluble lead chloride salt would be formed
Pb2+ + Cl- ---> PbCl2
However, the formation of PbCl2 in an aqueous medium leads to the establishment of equilibrium between dissolved ions and undissolved solids.
PbCl2 (aq) <------> Pb2+ + Cl-
Thus, it will not be possible to completely remove all the lead ions from the solution.
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