Answer:
Origin of Heterospory:
The fossil evidence indicates that some sporangia of the plant contained both small and large spores, though the size differences are not so pronounced. So a single sporangium contained both microspores and megaspores. At a later period, the microsporangia and megasporangia might have been differentiated.
Answer:
I know its not ecuador, sorry idk
Explanation:
Desde hace makes the most sense. The best form for this sentence is, "Te espere` una hora." It's shorter and direct.