Among keys designed to rapidly identify plants, a key dresigned to expedite identification, usually using easily observable characteristics, and without any regard fo the relationships among the taxa (species genera and a few others) a) synoptic key b) artificial key c) skeleton key d) myopic key The wisk fens (Psilotaceae) are UNIQUE among the fern allies because a) they do not have leaves; only enations b) they have only microphylis C) they have megaphylls d) they reproduce by spores Populations of cells with potential to divide rapidly to form a tissue that will give rise to primordia, then finally, an organ, are called: a) meristems b) primordia c) octomoms d) organ stransplants .