What Do Seed producing Cells Do?
Seeds are seeds that grow from a living plant. A seed is simply an indigestible plant enclosed within an outer protective cover. The development of the seed inside the hard shell is only part of the reproductive process in seed plants, including both the gametophytes and the gymnosperm plants. The menstrual cycle in seeds also differs from that of other plants in that the menstrual cycle in seeds allows for complete dispersal of the seeds, unlike other plants where the seeds remain enclosed during the menstruation period.
Seeds are classified into two major categories according to the way they are dispersed. Nominal seeds are those that are borne on the external parts of a plant such as the leaf or the stem and do not become part of the plant's reproductive apparatus. As such, they are referred to as external seeds. Internally, seeds are not part of a plant structure and cannot bear fruit. Nominal seeds can be either sexual or asexual: with each type having distinctly different attributes and characteristics. Sexual seeds are released as a result of fertilization by a female plant, while a sexual seed is produced by a male plant only after it has been fertilized by an appropriate female.
Seeds can be divided further into two general types based on their mode of dispersal. An overripe seedling, meaning that the plant has over produced seeds, can be dispersed by wind and is often accompanied by some of its seeds (along with its skin) falling to the ground. Sperm whales, responsible for the fertilization of human beings, have the ability to disperse these large seeds by swimming. A sparrow may carry a single seedling up to 50 cm, which is considerably longer than the average distance between seeds. One important note about sparrows: if a female bird carrying a single seedling decides to nest elsewhere because the conditions for her offspring are not suitable, she will not have produced any baby birds and will need to start over.
The other main type of seedling is that of a small seedling coated with hardening materials. This type of seedling is ready to germinate when picked up. If you pick up a seedling like this, it should be able to absorb its moisture very quickly. A good way of spotting this type of seedling is by observing how quickly it absorbs water: if it takes a long time to drip dry, it is probably coated with some sort of thick coating. These seeds are often referred to as hardy seeds.
Most seeds that fall to the earth are coated with a thin film of seed coat. This film serves to protect the embryo from the harsh environment in which it grows. Seed coat makes the seed harder to germinate; it also slows down the rate at which the seeds germinate. So, although seed coat tends to make seeds harder to germinate, it does this in a beneficial manner: it helps plants survive the harsh conditions they grow up in.
There are two types of seeds that can be used to make plants produce seeds. The first is known as sward. Sward is produced by the plants that contain chlorophyll, a substance that is responsible for giving plants their color. In order to produce more sward, seed coat is removed from the young seed. This seedling is a smaller embryo but will still grow like a normal seedling. The larger seeds produced by this process are known as blue-green algae.
The other type of seed production is that of gymnosperms. Gymnoplasties produce seeds on a scale that is similar to angiosperm seeds, but not quite to the same degree. These seeds are usually much larger than angiosperm seeds and have fleshy roots instead of a smooth underside. There are many different types of gymnosperms, but two of the best known are Trichophyton and Convolvulus.
When plants are able to get seeds to propagate, they will reproduce their seeds in one to three weeks time. This is how plants gain seeds and become perennials. Plants that cannot reproduce on their own will usually die after one or two years, unless something stops them from falling over.