Explain why triton retains an atmosphere while phobos does not

answer:

It's basically down to the temperature/distance from the sun. If Titan was in Earth's orbit, it wouldn't be able to retain its atmosphere at all, because the increased heat from the sun would warm the molecules in the atmosphere and make them move fast enough to escape Titan's gravity, so it'd lose it all to space. At Saturn's distance, it's cold enough that the molecules can't move fast enough to escape, so it retains the atmosphere. There are other possible factors too - for example, Titan doesn't have the molecules in its atmosphere stripped off by charged particles in Saturn's magnetosphere. That's probably why the Galilean Satellites of Jupiter don't have a significant atmosphere, despite the larger ones being about the same size and mass as Titan.

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the answer would be 2, if crossing over doesn’t occur 2 out of 4 of the daughter cells will have that allele.

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the correct answer is anaphylaxis.

anaphylaxis is a condition caused by insect bites, foods, medications, manifested by tongue swelling, shortness of breath, vomiting, low blood pressure. it sometimes may occur without an obvious reason. it is treated with epinephrine injection.other tretments include antihistamines and steroids,