Search results
Results from the WOW.Com Content Network
Synonyms. Pteridospermatopsida. Pteridospermatophyta, also called " pteridosperms " or " seed ferns " are a polyphyletic [ 1 ] grouping of extinct seed-producing plants. The earliest fossil evidence for plants of this type are the lyginopterids of late Devonian age. [ 2 ] They flourished particularly during the Carboniferous and Permian periods.
A philosophy that teaches that some races or people are universally satanic, like the serpent seed doctrine, is one such philosophy." [6]Also writing on the topic, Rev. John Brisby stated, "The Serpent's Seed doctrine is the hallmark of most radical hate groupstoday. Whether it involves neo-Nazis, right-wingmilitias, or one of the many other ...
Seed dispersal. Appearance. In spermatophyte plants, seed dispersal is the movement, spread or transport of seeds away from the parent plant. [ 1 ] Plants have limited mobility and rely upon a variety of dispersal vectors to transport their seeds, including both abiotic vectors, such as the wind, and living (biotic) vectors such as birds.
Mushroom spawn is a substrate that already has mycelium growing on it. [ 1 ][ 2 ] Mycelium, or actively growing mushroom culture, is placed on growth substrate to seed or introduce mushrooms to grow on a substrate. This is also known as inoculation, spawning or adding spawn. Its main advantages are to reduce chances of contamination while ...
The oldest viable seed that has grown into a full plant was a roughly 2,000-year-old Judean date palm seed, recovered during excavations at Herod the Great 's palace on Masada. It had been preserved in a cool, dry place, not by freezing. It was germinated in 2005. [3][4][5][6]
Photomicrograph of various seeds. In botany, a seed is a plant embryo and food reserve enclosed in a protective outer covering called a seed coat (testa). More generally, the term "seed" means anything that can be sown, which may include seed and husk or tuber.
Seed predation, often referred to as granivory, is a type of plant-animal interaction in which granivores (seed predators) feed on the seeds of plants as a main or exclusive food source, [ 1 ] in many cases leaving the seeds damaged and not viable. Granivores are found across many families of vertebrates (especially mammals and birds) as well ...
Germination is the process by which an organism grows from a seed or spore. The term is applied to the sprouting of a seedling from a seed of an angiosperm or gymnosperm, the growth of a sporeling from a spore, such as the spores of fungi, ferns, bacteria, and the growth of the pollen tube from the pollen grain of a seed plant.