WebSpirogyra Conjugation: 3 phases. 1. tube formation 2. movement of gametes 3. empty cells and zygotes. - Genus Oedogonium - green algae - Domain Eukarya; Kingdom Protist; Phylum Chlorophyta - Supergroup Archaeplastida; Clade 1 Chlorophytes. A diatom (Neo-Latin diatoma) is any member of a large group comprising several genera of algae, specifically microalgae, found in the oceans, waterways and soils of the world. Living diatoms make up a significant portion of the Earth's biomass: they generate about 20 to 50 percent of the oxygen … See more Diatoms are protists that form massive annual spring and fall blooms in aquatic environments and are estimated to be responsible for about half of photosynthesis in the global oceans. This predictable annual … See more Most centric and araphid pennate diatoms are nonmotile, and their relatively dense cell walls cause them to readily sink. Planktonic forms … See more Distribution Diatoms are a widespread group and can be found in the oceans, in fresh water, in soils, … See more Diatoms are generally 2 to 200 micrometers in size, with a few larger species. Their yellowish-brown chloroplasts, the site of … See more Diatom cells are contained within a unique silica cell wall known as a frustule made up of two valves called thecae, that typically overlap one … See more Reproduction and cell size Reproduction among these organisms is asexual by binary fission, during which the diatom divides into two parts, producing two "new" diatoms with identical genes. Each new organism receives one of the two See more • The modern oceanic silicon cycle Fluxes are in T mol Si y (28 million metric tons of silicon per year) Silica cycle The diagram shows … See more
Stentor: Structure, Classification, and Characteristics
WebLearn the concepts of Class 11 Biology Biological Classification with Videos and Stories. Explain Protista with examples.Discuss chrysophytes, characters of diatoms, diatomaceous earth,diatoms as chief producers, dinoflagellates, euglenoids, slime moulds. Describe protozoans, their characters and examples http://bioweb.uwlax.edu/bio203/2010/ramsby_jord/classification.htm how far is 30 fathoms
Bacillariophyta: Class, Order and Family Algae - Biology Discussion
WebThe units he used were kingdom, phylum, class, order, family, genus, and species. The kingdom is the most inclusive group; it contains the largest variety of related organisms. The species is the smallest group; it contains only one kind of organism. ... Diatoms, like other algae and plants, contain the green pigment chlorophyll within special ... WebThe classification of heterokonts is still unsettled, and they may be treated as a division (or phylum), kingdom, or something in-between. Accordingly, groups like the diatoms may … WebFig.3: The Five Kingdom Classification. 3.1 Kingdom Monera. They lack defined nucleus or organelles and multi-cellular body designs. Cell wall is found in some of them. ... Unicellular algae, diatoms and protozoans are included in this group. Note: In autotrophic mode of nutrition, organisms synthesise their own food. hifab modular homes