It is a cold winter day in Boston with a temperature of −7° C (19° F) and forecast of 3 cm of snow. How do the weather conditions determine the possibility of snow? It is a cold winter day, and it snows every day in the winter.
It is winter, and the temperature is well above freezing, causing snow.
It is winter, and the temperature is well below freezing, making snow likely.
Snow is expected to fall at temperatures at or above freezing.

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Glycogen is an energy-storage molecule in humans. a hormone that is called insulin controls the storage of glycogen in the liver. insulin is made up of amino acids.

One of the newest applications of cell technology is called cybrid embryos. this process involves replacing the nuclear material of an animal cell with human nuclear material. how might this process affect public policies about research by using stem cells? the same policies and concerns about the use of human embryonic stem cells would most likely apply. the embryos would most likely be treated like traditional animal embryos and regulated accordingly. the process of forming cybrid embryos would most likely be banned by government regulators. the embryos would be treated as regular cells because they are not fully human in origin.

18. how do the cells in meiosis differ from the cells in mitosis?