A pal of mine was telling me how heâd had some problems with his Sony PSP and that as a result of a particularly bad moment to have his battery die, it was now âbrickedâ. What does that mean? The short answer is that it has become âas useful as a brickâ. Not good. Not good at all. Basically this kind of thing can happen to any consumer electronics, from a TV to a DVD player to an mp3 player or video game unit.
A sporophyte is a plant or alga in its diploid multicellular stage of life that produces spores. Each sporophyte has a double set of chromosomes, one from its haploid egg cell and another from its... A sporophyte is a plant or alga in its diploid multicellular stage of life that produces spores. Each sporophyte has a double set of chromosomes, one from its haploid egg cell and another from its...
Fern leaves grow from a rhizome. Fern leaves are fan-shaped and also play an important role in reproduction. The production of spores occurs in structures called sporangia. These structures are found on the surface of the fronds, usually on the underside of the leaf. When the sporangia or spore casings dry out, the dispersal of spores occurs into the atmosphere. Certain fern species date back nearly 400 million years. There are about 12,000 fern species.