7.- En la reproducción de los vertebrados la fecundación determina el: I) tipo de segmentación del huevo.
II) sexo cromosómico del embrión.
III) reestablecimiento de la diploidía.
Es (son) verdadera(s)
A) solo I.
B) solo II.
C) solo III.
D) solo I y III.
E) solo II y III.

#PSU

hi~~

i would say that hybridization occurs frequently in nature, because there are many types of hybrids that have occurred naturally, such as the mule (male donkey + female horse)

false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

explanation:

what school and grade?