Pollens are produced from the microspore mother cells, but female spores are produced by the megaspore mother cells.
Pollen grains have two outer coats extine and intine and female spores do not have the extine or intine.
Spores are reproductive haploid structures and which can be large female spores, which are called megaspores, or small male spores, which are called microspores.
Spores are used by groups of ancient plants and fungi in one stage of their reproduction. ... Spores grow into intermediate plants called gametophytes. Neither of these groups of plants produces flowers. Pollen is used by flowering plants to fertilize seeds.
According to National Geographic, "Fossils are the preserved remains, or traces of remains, of ancient organisms." When you find the impression of a leaf, the leaf imprint is the preserved remains of the leaf.
