Answer:
D.Duplicate halves of a chromosome
A fossil would from through mineral replacement by replacing the existing material of the animals bones with minerals, to become petrified. The Minerals will keep the fossil preserved longer.
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Falling pressure indicates the mass of the atmosphere above a point is decreasing, which can happen as the result of various atmospheric processes. In general, weather systems with low pressure at their centers (called cyclones) are associated with unsettled weather (clouds and precipitation) and strong winds. So, I’m guess cold and wet air mass.
respuesta e
Explanation:
La fecundación es el proceso por medio del cual un ovocito u óvulo y un espermatozoide se unen dando lugar a un cigoto o embrión
