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during the stage of cell development, it changes from a generic cell to become a specific type of cell, specialized to perform certain functions. a differentiation b nucleus c unicellular d mitosis e prokaryote f cell membrane

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Which feature indicates that mars resides in the inner region of the solar system

Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i.e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.

What effects result when there is an impact between earth and an asteroid? check all that apply. a.massive flooding. b.extinction of many life forms.c.major earthquakes change in average global temperature.d. giant dust cloud