Essential to understanding the life cycle of a plant is the concept of alternation of generations. One of the defining traits of plants is that a single adult plant exists in two separate states, called generations, with differing purposes. The sporophyte generation contains a full set of chromosomes in each cell and produces spores.
SD cards are an extension of MMC memory cards; this means that it's possible to use MMC cards in newer SD devices. It's also possible to use regular SD cards in SDHC and SDXC devices.
As MikuMikuDance is exclusively a posing and animation software, modelers use 3D modeling software, such as Blender or Metasequoia, to create the model and UV map, while the majority of conversion to the MMD platform (such as facial morphs, bones and physical bodies) is done with a program made exclusively for MMD model conversion, PMD Editor or its successor PMX editor.