there are three steps for evolution of seed
1. origin of heterospory
2. development of integument layer for megasporangia which protect and supply
food.
3. retention of imatuare megaspores in the sporangia.
You can find an overview of stelar evolution in the Wikipedia article entitled "Stellar evolution".
Three major adaptations in flowering plants are the evolution of flowers to attract pollinators for reproduction, the development of fruits to protect and disperse seeds, and the ability to undergo double fertilization for efficient seed production.
germination
Embryo, endosperm, and seed coat.
All that is needed to make a new plant.
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You can find an overview of stelar evolution in the Wikipedia article entitled "Stellar evolution".
"The three main parts of a seed is an embryo, the cotyledon, and the seedcoat."
The five steps of the plant life cycle are seed germination, growth and development, reproduction, pollination and fertilization, and seed dispersal.
Seed coat, embryo and endosperm
Three major adaptations in flowering plants are the evolution of flowers to attract pollinators for reproduction, the development of fruits to protect and disperse seeds, and the ability to undergo double fertilization for efficient seed production.
The major change in Earth's climate that favored the evolution of seed plants was the transition to a drier climate. Seed plants were better adapted than non-seed plants to survive in this drier environment because seeds are a more efficient way to disperse and protect offspring in dry conditions.
germination
The first apple tree is not grown by human but in the nature. It is from evolution so it was used an apple seed naturally.
What major Change In earths climate favored THE evolution Of seed plants
Three Steps in the Dark was created in 1953.
Three Steps to the Gallows was created in 1953.