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Reproduction completes and perpetuates the cycle. In biology, a biological life cycle (or just life cycle when the biological context is clear) is a series of stages of the life of an organism, that begins as a zygote, often in an egg, and concludes as an adult that reproduces, producing an offspring in the form of a new zygote which then ...
Enterprise life cycle, the process of changing a business enterprise. Project life cycle. Product lifecycle, the stages in the lifespan of a commercial or consumer product. New product development, the process of bringing a new product to market. Life-cycle assessment, the analysis of the environmental impacts associated with a product.
Alternation of generations (also known as metagenesis or heterogenesis) [1] is the predominant type of life cycle in plants and algae. In plants both phases are multicellular: the haploid sexual phase – the gametophyte – alternates with a diploid asexual phase – the sporophyte . A mature sporophyte produces haploid spores by meiosis, a ...
Life cycle assessment ( LCA ), also known as life cycle analysis, is a methodology for assessing environmental impacts associated with all the stages of the life cycle of a commercial product, process, or service. For instance, in the case of a manufactured product, environmental impacts are assessed from raw material extraction and processing ...
Sexual reproduction is the most common life cycle in multicellular eukaryotes, such as animals, fungi and plants. [4] [5] Sexual reproduction also occurs in some unicellular eukaryotes. [2] [6] Sexual reproduction does not occur in prokaryotes, unicellular organisms without cell nuclei, such as bacteria and archaea.
Giant barrel sponges can live more than 2,000 years. The giant barrel sponge Xestospongia muta is one of the longest-lived animals, with the largest specimens in the Caribbean estimated to be more than 2,300 years old. [63] The black coral Antipatharia in the Gulf of Mexico may live more than 2,000 years.
e. A generic lifecycle of products. In industry, product lifecycle management ( PLM) is the process of managing the entire lifecycle of a product from its inception through the engineering, design and manufacture, as well as the service and disposal of manufactured products. [1] [2] PLM integrates people, data, processes, and business systems ...
Sporophyte. Diagram showing the alternation of generations between a diploid sporophyte (bottom) and a haploid gametophyte (top) A sporophyte ( / ˈspɔːr.əˌfaɪt /) is the diploid multicellular stage in the life cycle of a plant or alga which produces asexual spores. This stage alternates with a multicellular haploid gametophyte phase.