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What do microspores develop into in seed plants?
Microgametophytes (pollen grains).
What is the process called when a sperm and egg fuse?
Fertilization.
What is the ploidy level of the sporophyte generation?
2N (diploid).
What structure produces megaspores in seed plants?
Megasporangium.
In the plant life cycle, what phase follows fertilization?
Sporophyte development.
What are the two types of gametophytes in seed plants?
Microgametophyte and megagametophyte.
What phase involves meiosis in the plant life cycle?
Sporophyte phase.
What type of spores do microspore mother cells produce?
Microspores.
What structure contains the egg in plants?
Archegonium.
What do megaspores develop into?
Megagametophytes.
What type of spores are formed from megaspore mother cells?
Megaspores.
Through what process do diploid cells become haploid spores?
Meiosis.
What are the male gametes in plants called?
Sperm.
What is formed during the first stage of fertilization?
Zygote.
In flowering plants, what part is responsible for producing pollen?
Anther.
What do the terms 'sporophyte' and 'gametophyte' refer to in plant life cycles?
Sporophyte is the diploid phase; gametophyte is the haploid phase.
What cell division occurs after fertilization leads to a zygote?
Mitosis.
What is the structure that houses sperm in seed plants?
Antheridium.
How do microspores develop in the context of gametophyte formation?
They develop into pollen grains (microgametophytes).
What is the difference between megaspores and microspores?
Megaspores develop into female gametophytes; microspores develop into male gametophytes.
What is formed once a fertilized egg begins developing into a new plant?
Sporophyte embryo.
What do the terms 'male' and 'female' refer to in terms of plant gametophytes?
Microgametophyte is male; megagametophyte is female.
What is the female gamete in plant reproduction?
Egg.
What do spores germinate into after being released?
Gametes.
What do fertilized seeds develop into after maturation?
New sporophytes.
Which stage of the plant life cycle is multicellular and haploid?
Gametophyte stage.
What role does meiosis play in the life cycle of plants?
It reduces the chromosome number to form haploid spores.
What environmental conditions are necessary for fertilization to occur in plants?
Moisture for sperm motility.