<h2>
Answer:</h2>
These two sonnets may indeed be addressed to the "dark lady" of his sonnet, and yes she seems to be his lover, However, 130 is much more complimentary and focuses on the mistress' beauty. The use of the similes to compare her various physical features to some natural occurrences helps us to understand how rare he thinks their love is because she is so beautiful. On the other hand, 138 is somewhat negative and uses the word "lie" to do what shakespeare does best, play on words (i.e the use of pun). She lies to him and he knows it, but he listens anyway and ultimately they "lie" together.
<u>Answer;</u>
Sodium and potassium concentration are altered in <em><u>the kidney</u></em> in response to <u>aldosterone</u> hormone.
<em><u>Explanation</u></em>;
- <em><u>Although the sodium content of the body may be altered, its concentration in the ECF remains stable because of immediate adjustments in water volume.</u></em>
- <em><u>Aldosterone stimulates the reabsorption of sodium while enhancing potassium secretion. Therefore, When aldosterone release is inhibited, sodium reabsorption cannot occur beyond the collecting tube</u></em>.
- Aldosterone hormone is produced from the adrenal gland. the release of this hormone is stimulated by the decrease in blood pressure.
Answer:
Increased genetic variation reduces the species chances of being extinct. Conversely, reduced genetic variation in a species increase the chances of the species being extinct.
Explanation:
With increased genetic variation in a species, there is increased phenotypic variation amongst organisms in the species for natural selection to act on with selection pressures exerted upon the species in their environment e.g. predation or diseases. Hence even if a certain genotype express susceptibility to a certain disease, only some organisms will be selected against and there are sufficient organism without this genotype that will be able to survive and ensure the continuity of the species.
Conversely, if all the organisms express the same genotype susceptible to the disease (in extreme cases), upon exposure to the disease (which acts as the selection pressure), all the organisms will die and there will be no surviving organisms for the continuity of the species. Hence with minimal genetic variation, the species is more prone to extinction due to the inability to withstand selection pressures.
This is often a common cause of concern in the conservation of endangered species. Due to the small number of e.g. tigers remaining, most offsprings are produced through inbreeding between family members thus even though the family tree of the species is expanding, there is little genetic variation within the species. Therefore, the chances of extinction of these endangered species is high and thus biologists and conservationists have to monitor the selection pressures exerted upon these species by their environment to reduce the risk of extinction.
Well thank you have a good tomorrow to!!!!!
