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What is a land plant that produces flagellated sperm and has a sporophyte dominated life cycle?
A land plant that fits this description is a fern. Ferns have flagellated sperm that require water for fertilization, and their life cycle is characterized by a dominant sporophyte stage. During fertilization, the sperm swim through water to reach the eggs on the archegonia of the female gametophyte.
Does sexual life cycles differ with respect to the relative timing of meiosis and fertilization?
Yes, sexual life cycles can differ based on the relative timing of meiosis and fertilization. In some organisms, such as animals, meiosis and fertilization occur separately and alternately, resulting in a diploid-dominant life cycle. In contrast, in some algae and fungi, meiosis and fertilization can occur in close succession, leading to a haploid-dominant life cycle.
What plant reproduces using sori and a prothallus?
The plant that reproduces using sori and a prothallus is a fern. Sori are clusters of sporangia where spores are produced, while prothallus is the gametophyte stage in the fern life cycle where fertilization occurs. Ferns have a unique reproductive cycle that involves both sexual and asexual reproduction.
What is the function of a prothallium?
The prothallium is the gametophyte stage in the life cycle of ferns. Its main function is to produce gametes (eggs and sperm) through mitosis, which will eventually lead to fertilization and the formation of a new sporophyte plant.
What role does the dominant generation play in the life cycle of ferns?
The dominant generation in the life cycle of ferns is the sporophyte, which is the plant that produces spores. The sporophyte is the visible, leafy plant that we typically think of as a fern. It plays a crucial role in reproduction by producing spores that develop into the gametophyte, which is a smaller, less visible plant that produces eggs and sperm. The gametophyte then fertilizes and develops into a new sporophyte, completing the life cycle of ferns.
When does fertilization occur during the gymnosperms life cycle?
it occurs when it occurs
What is a land plant that produces flagellated sperm and has a sporophyte dominated life cycle?
A land plant that fits this description is a fern. Ferns have flagellated sperm that require water for fertilization, and their life cycle is characterized by a dominant sporophyte stage. During fertilization, the sperm swim through water to reach the eggs on the archegonia of the female gametophyte.
Does sexual life cycles differ with respect to the relative timing of meiosis and fertilization?
Yes, sexual life cycles can differ based on the relative timing of meiosis and fertilization. In some organisms, such as animals, meiosis and fertilization occur separately and alternately, resulting in a diploid-dominant life cycle. In contrast, in some algae and fungi, meiosis and fertilization can occur in close succession, leading to a haploid-dominant life cycle.
What plant reproduces using sori and a prothallus?
The plant that reproduces using sori and a prothallus is a fern. Sori are clusters of sporangia where spores are produced, while prothallus is the gametophyte stage in the fern life cycle where fertilization occurs. Ferns have a unique reproductive cycle that involves both sexual and asexual reproduction.
What life cycle components appear only in mosses and ferns?
The gametophyte generation is more prominent and independent in mosses and ferns compared to seed plants. Also, the sporophyte generation in mosses and ferns is not as prominent or long-lived as in seed plants. Finally, mosses and ferns rely on water for fertilization, a characteristic not seen in seed plants.
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.
What are all changes that occur from the fertilization of the egg until death referred to as?
The changes that occur from fertilization of the egg until death are referred to as the lifecycle or life cycle. This encompasses all stages of development, growth, reproduction, and eventual death in an organism.
What are the steps in the diploid life cycle?
The steps in the diploid life cycle are meiosis, to gametes, to fertilization, to diploid, to reproductive cell. The main steps are Meiosis and Fertilization.
What is the function of a prothallium?
The prothallium is the gametophyte stage in the life cycle of ferns. Its main function is to produce gametes (eggs and sperm) through mitosis, which will eventually lead to fertilization and the formation of a new sporophyte plant.
What does the life cycle of a frog begin with?
External fertilization of many eggs
What process produces the 2N sporophyte in the moss life cycle?
fertilization
What role does the dominant generation play in the life cycle of ferns?
The dominant generation in the life cycle of ferns is the sporophyte, which is the plant that produces spores. The sporophyte is the visible, leafy plant that we typically think of as a fern. It plays a crucial role in reproduction by producing spores that develop into the gametophyte, which is a smaller, less visible plant that produces eggs and sperm. The gametophyte then fertilizes and develops into a new sporophyte, completing the life cycle of ferns.
