Given what we know about the processes mentioned, we can confirm that a possible source for the extra salt in the stream is Nearby Fracking.
Fracking is a highly controversial process in which highly pressurized water is used for drilling. It is often used to mine natural gas and oil. The controversy lies within its high environmental cost.
The environmental cost factor lies in the use of <em><u>massive amounts of </u></em><em><u>water</u></em> and its further <em><u>contamination </u></em><em><u>of nearby </u></em><em><u>water sources</u></em> due to the chemicals released during this process.
This, coupled with the fact that the water source in question is stated to <em><u>not be connected to any form of </u></em><em><u>wetland</u></em> leads us to the conclusion that the most likely source of extra salt in the stream is nearby fracking.
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Answer:
According to the illustration of meiosis I, when sister chromatids stay together the phase to which it corresponds is telophase I (fourth option).
Explanation:
Meisois is a process of cell division whose final result is the obtention of two daughter cells with half of their genetic charge, with respect to the original cell. This process is divided into two parts, called meiosis I and II.
Telophase I corresponds to the phase of cell division in meiosis I, where the events that occur are the appearance of the nuclear membrane on the newly divided genetic material, cytokinesis -or cytoplasmic division- and above all due to the fact that each daughter cell already contains half of the genetic load, since the sister chromatids stay together.
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Auxin is the molecule which is related to the phototropism of the plants. In the mutant plants, which do not have hormone auxin, do not respond to light. It activates proton pump, and leads to the decrease in the pH of the leaf. This acidification breaks cell wall structure and cell wall become less rigid, and thus, can bend towards the light, by exerting mechanical pressure.