Search Results for: Mineral water not containing sweetening matter
(kozlowski ) gymnosperms[ edit ] in gymnosperms, which do not form ovaries, the ovules and hence the seeds are exposed. this is the basis for their nomenclature – naked seeded plants. two sperm cells transferred from the pollen do not develop the seed by double fertilization, but one sperm nucleus unites
. at dormancy break, a specialized structure, the 'water gap', is disrupted in response to environmental cues, especially temperature, so water can enter the seed and germination can occur. plant families where physical dormancy occurs include anacardiaceae , cannaceae , convulvulaceae , fabaceae and...
https://en.wikipedia.org/wiki/Seed