0
Add your answer:
Earn +20 pts
Which type of eukaryotic life cycle does a diagram represent?
It represents the diploid-dominant life cycle commonly found in plants.
How does being small and light help a pollen grain in pollination?
Being small and light allows a pollen grain to be easily dispersed by wind or animals, increasing the chances of reaching a receptive female reproductive structure. This improves the efficiency of pollination and increases the likelihood of successful fertilization.
How long does the gymnosperms life cycle typically take to complete?
The gymnosperms' life cycle typically takes about one year to complete. It involves stages such as seed production, germination, growth of a new plant, and eventually the production of new seeds.
What type of eukarytic life cycle does this diagram represent?
The diagram shows a diploid-dominant life cycle, where the dominant stage is diploid and the haploid stage is reduced and often unicellular. Examples include fungi and most animals.
Is pollen living or non living?
Pollen is considered non-living because it is a structure produced by plants for the purpose of reproduction. It consists of cells that carry genetic material but does not exhibit the characteristics of living organisms like growth, metabolism, or response to stimuli.
Which part of the life cycle does a pollen grain represent?
a male gametophyte
The pollen grain replaces what structure in the life cycle of seedless plants?
The pollen grain replaces the motile sperm in the life cycle of seedless plants. When the pollen grain lands on the female reproductive structure, it germinates and produces a tube that delivers non-motile sperm to the egg for fertilization.
When does fertilization occur during the gymnosprem life cycle?
Fertilization in the gymnosperm life cycle occurs when the pollen grain lands on the female cone and the male gametes fertilize the egg cell within the ovule. This typically happens after the pollen grain has been carried by wind to the female cone.
Does pollen contain the sporophyte?
No, pollen does not contain a sporophyte. Pollen grains are the male gametophytes of seed plants, which produce sperm cells needed for fertilization. The sporophyte generation of seed plants is the dominant phase of the life cycle and produces the pollen.
What replaces swimming sperm in the life cycle of seed plants?
pollen
Why do flowers have a life cycle?
because they produce pollen it involes seed dis[persal
Which type of eukaryotic life cycle does a diagram represent?
It represents the diploid-dominant life cycle commonly found in plants.
How is pine life cycle differentg from the fern and moss life cycle?
It is different because the reproduction is spread by the wind. The wind carries the pollen and the pollen fertilizes the seed.
Why do flowers die when pollinators brush pollen on the flower?
Once the flower gets pollen, it starts to create seeds. That is the job of the flower. It is part of the cycle of life.
What are 3 things that Demeter protects?
the grain harvest, the religious laws and the cycle of life and death.
How do seeds Reproduction?
it depends on gymnosperm (naked seed) or angiosperm (flowering plant) this is the angiosperm - Another germination event during the life cycle of gymnosperms and flowering plants is the germination of a pollen grain after pollination. Like seeds, pollen grains are severely dehydrated before being released to facilitate their dispersal from one plant to another. They consist of a protective coat containing several cells (up to 8 in gymnosperms, 2-3 in flowering plants). One of these cells is a tube cell. Once the pollen grain lands on the stigma of a receptive flower (or a female cone in gymnosperms), it takes up water and germinates. Pollen germination is facilitated by hydration on the stigma, as well as the structure and physiology of the stigma and style.[1] Pollen can also be induced to germinate in vitro (in a petri dish or test tube).[3][4] During germination, the tube cell elongates into a pollen tube. In the flower, the pollen tube then grows towards the ovule where it discharges the sperm produced in the pollen grain for fertilization. The germinated pollen grain with its two sperm cells is the mature male microgametophyte of these plants.[1
When pollen lands on another plant what do you call this?
It is called 'Pollination'. It's one of the essential stages in the life cycle of a plant.
