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: 11=d 12=d 13=a 14=b 15=b 16=d
Explanation:
i am mexican so i know hope there are right
It ended in 1509. Hope this helps!!!!!
