stramenopiles are unique in that they possess

Which type of organisms are placed under the kingdom Protista? C. breaking down wastes, toxins, explosives, and petrochemicals Some may be kleptoplastic ingesting and digesting a unicellular alga, but keeping the plastid until it degenerates. D. the uptake of free DNA from the environment. T or F, Ornate glassy coatings protect diatoms. identical macronucleus. Archaeplastida is more general in including the red algae and the glaucophytes. C. Increases in animal body sizes and appearance of shelled organisms. allows scientists to cause mutations in the DNA thereby killing the Many stramenopiles also have an additional flagellum that lacks hair-like projections. -A host cell ingests two or more symbionts simultaneously. Asexual reproduction (by mitosis) results in two daughter cells that each inherit one frustule from the parent, with a second new frustule formed. One notable change was due to the emergence of photosynthetic organisms. This gives the flagellum a feathery appearance. D. It is a major cause of food poisoning in humans. For instance, the cell walls of oomycetes are composed of cellulose rather than chitin and generally do not have septations. Flagella occur in both prokaryotes and eukaryotes. conjugation remain dormant under stressful environments. E. 33, Binary fission is: Stramenopiles are eukaryotes; since they are neither fungi, animals, nor plants, they are what used to be called protists. D. dengue fever Despite its appearance, kelp is not a plant since it is not made of more than one clearly differentiated tissue; it is a heterokont. B. parasite It is not clear whether non-photosynthetic stramenopiles (such as oomycetes) represent an evolutionary loss of plastids or descent from an ancestor that pre-dates the acquisition of plastids by the algal members of the group. B. Rhizaria Some stramenopiles are significant as autotrophs and as heterotrophs in natural ecosystems. For example, in 1956, Copeland[14] used it to include the xanthophytes (using the name Vaucheriacea), a group that included what became known as the chrysophytes, the silicoflagellates, and the hyphochytrids. Some algae are more closely related to plants than they are to other algae. Chrysophytes include groups of unicellular, filamentous, or colonial photoautotrophic algae that are often found in freshwater ecosystems, but may also be found in marine and terrestrial ecosystems.

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