Meiosis
No, pollen grains are not spores. Pollen grains are male gametophytes produced by seed plants that are involved in the reproductive process, while spores are typically asexual reproductive structures produced by some plants, fungi, and algae.
Yes, gymnosperms do produce spores. They reproduce using male and female spores, which develop into pollen grains and ovules, respectively. The male spores are typically produced in cones, while the female spores develop within ovulate cones. This spore-based reproduction is a key characteristic of gymnosperms, distinguishing them from flowering plants (angiosperms).
A sporophyte is a plant element that carries the spores. The spores are the male reproduction seeds, that grow out to a whole new plant when fertilised.
The male gamete in a plant is produced in the anther of the flower, which is the male reproductive organ. The anther contains pollen grains, which are the male gametes that ultimately fertilize the female egg cells in the ovule of the plant.
Mosses reproduce through spores that are produced in capsules on the sporophyte. These spores are released into the environment and can germinate into a new moss gametophyte under suitable conditions. The gametophyte then produces male and female gametes, which combine to form a new sporophyte.
No, ixora does not reproduce by spores. Ixora is a flowering plant that reproduces through sexual reproduction involving the fusion of male and female gametes. Spores are typically produced by non-flowering plants such as ferns and mosses as part of their reproductive cycle.
Yes, all pine trees reproduce through seeds. Pine tree seeds are produced in the female pine cone, which is much, much larger and far more robust than the small, catkin-like male cone, which only produces pollen.
In fern plants, gametes are produced in specialized structures called gametangia. Male gametes (sperm) are produced in antheridia, while female gametes (eggs) are produced in archegonia. These structures are typically found on the prothallus, which is the gametophyte generation of the fern. The prothallus is a small, heart-shaped plant that grows from spores and is independent of the sporophyte generation.
No, male cone can only produce microspores (Pollen grains).
The female cone
Gametophyte is produced during mitosis of spores. It is a major part to the male and female reproduction. Gametes are often called eggs or sperm cells.
I think you're a little confused. Pine cones come from pine trees. Evergreens are any plant that doesn't lose its leaves ever year. Not all evergreens are needle leaf trees. Not all needle leaf plants are evergreen. Not all evergreens have cones. And not all plants with cones are pines. But... to answer your question... A cone on a plant (be it a pine, spruce, fir, yew, cedar, redcedar, redwood, larch, or hemlock) is a reproductive organ. Most conifers have separate male and female cones. The male cone has spores that contain sperm. The spores are dispersed by air and land on the female cone (usually of another plant.) After the female cone is fertilized, seeds form.