They can range in size from just a few inches tall to more than 12 feet in the case of the tree ferns. Some types of ferns are tropical. Others quite hardy. Their versatility aside, ferns are valuable in the home and garden because they prefer shade. In the landscape, ferns bring fresh green life to those hard-to-design dim corners.
Prokaryotic cells have various shapes; the four basic shapes are: Cocci - spherical Bacilli - rod shaped Spirochaete - spiral shaped Vibrio - comma shaped.
Introduction to characteristics of prokaryotes. Prokaryotes are the single-celled organisms and much smaller than eukaryotic cells. The size of most prokaryotes is between 1 Âµm and 10 Âµm, but can vary in size from 0.2 Âµm to 750 Âµm.enetic material of prokaryotes is not present in nucleus and consists of a large DNA molecule compacted in an area of cytoplasm called the nucleiod region. Cell wall of the prokaryotes is composed of peptidoglycan, a single large polymer of amino acids and sugar.