Registration numbers must be not less than three inches (3) in height and the. documented name must be in 4-inch letters. Spaces or hyphens should be equal to the. width of a letter other than I or a number other than 1. On vessels so configured that a.
Sponge Animation: Spicules. Spicules are microscopic structures of hard crystal material with fantastic shapes unique to the different species of sponge. They are part of the skeleton that helps give the sponge its shape.
A sporangium (pl., sporangia) (modern Latin, from Greek ÏÏÏÏÎ¿Ï (sporos) âsporeâ + Î±Î³Î³ÎµÎ¯Î¿Î½ (angeion) âvesselâ) is an enclosure in which spores are formed. It can be composed of a single cell or can be multicellular. All plants, fungi, and many other lineages form sporangia at some point in their life cycle. Sporangia can produce spores by mitosis, but in nearly all land plants and many fungi, sporangia are the site of meiosis and produce genetically distinct haploid spores.