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Gymnosperms and Angiosperms do not need flagellated sperm because they have other meathods to get the sperm to the egg.
In Gymnosperms, the pollen that contains the sperm lands on the inside of a female cone scale where the megaspore mother cell is located. Once it lands there, the pollen begin to dig in and form a pollen tube. While this is happening, the megapore mother cell undergoes meiosis to form four haploid cells (now in gametophyte stage). One of these cells becomes the megaspore, one becomes the endosperm mother cell, and the other two become the gametopyte that surrounds the egg. When the sperm finally reaches the egg, it forms a zygote still inside the gametophyte. This zygote becomes the embryo, which becomes the seed, and the gametophyte becomes the seed coat.
In Angiosperms, pollinators take pollen from one flower to another where it gets attached to a stigma, and forms a tube to that egg.
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Does sexual reproduction of plants use seeds?
Not all plants use seeds! seeds have recently evolved in plants, in fact gymnosperms and angiosperms are the only classifications that use seeds! however, plants such as ferns and mosses use spores! you also need to remember that not all plants reproduce sexually! some reproduce asexually!
Why are angiosperms considered as the most successful terrestrial plants compare to other plant?
A simple answer is that they have evolved complex relationships to animal pollinators and seed dispersers, whereas gymnosperms rely on wind pollination and seed dispersal, and ferns and the other lower plants need water. Angiosperms also have vessels in their xylem, which is much better at transporting water quickly. (of course, they have problems of their own) Also, they have fruits enclosing seeds
What do in need for viewing sperm cells?
Sperm and a microscope.
What is a sentence with sperm?
I need you to give me your sperm so i can have a baby Sperm is the seed of the man
Does a girl sperm?
girls need a testicle(where sperm is produced) since girls don't have, girls don't sperm
What is the difference between ferns and gymnosperms?
One is a seedless vascular plant that reproduces with spermataphores that need a somewhat water milieu to swim to the site of conception. Ferns. Gymnosperms are seed bearing vascular plants that have a two sex reproductive system somewhat similar, but not as complex as angiosperms.
how are angiosperms and its pollinators mutually rewarded by their relationships?
The angiosperms are pollinated and the pollinators get what they need. An example is honey bees, which pollinate flowers and also get what they need to make their hives.
Were the first plants that did not require water for transferring sperm to eggs.?
Gymnosperms
Does sexual reproduction of plants use seeds?
Not all plants use seeds! seeds have recently evolved in plants, in fact gymnosperms and angiosperms are the only classifications that use seeds! however, plants such as ferns and mosses use spores! you also need to remember that not all plants reproduce sexually! some reproduce asexually!
Why are angiosperms considered as the most successful terrestrial plants compare to other plant?
A simple answer is that they have evolved complex relationships to animal pollinators and seed dispersers, whereas gymnosperms rely on wind pollination and seed dispersal, and ferns and the other lower plants need water. Angiosperms also have vessels in their xylem, which is much better at transporting water quickly. (of course, they have problems of their own) Also, they have fruits enclosing seeds
Can a human get pregnant with birds sperm?
No they can't because they need the x and y sperm that we need. They do not have that type of sperm.
Does bryophytes require water fertilization?
No, angiosperms do not need water to reproduce. Bryophytes, or mosses, need water to reproduce-the sperm cells swim to the egg by following a trail of chemicals in the water. Thus, mosses reproduce in wet, rainy seasons of the year. Angiosperms, on the other hand, do not require water because the stamen releases male gametophytes, pollen grains, that are carried by the wind to the egg in the carpel.
What is need of sperm in body?
Sperm is needed to reproduce.
What do in need for viewing sperm cells?
Sperm and a microscope.
What is a sentence with sperm?
I need you to give me your sperm so i can have a baby Sperm is the seed of the man
Do sperm need oxygen?
no. sperm can live outside the male body for up to 72 hours
Is ivy an angiosperm or gymnosperm?
Yes. Angiosperms cover all flowering/fruit bearing plants (this group covers most modern plants). The alternative would be gymnosperms which are the older "naked seed" plants such as conifers "pines". This is a smaller percentage of total plants so one can assume that most plants in your area are angiosperms. Need proof? Just look up poison ivy flower, because if it flowers it is angiosperm.
