Despite its appearance, kelp is not a plant since it is not made of more than one clearly differentiated tissue; it is a heterokont. Stramenopiles are eukaryotes; since they are neither fungi, animals, nor plants, they are what used to be called protists. egg Plasmodium sporozoites produce merozoites in the human: the choanoflagellates Genetic material, DNA and RNA, are found in three distinct organelles in eukaryotic cells, what are these organelles and which type of relationship may have lead to their formation? The photosynthetic species possess plastids of secondary or higher red algal origin. because their two halves fit like the lid and body of a pillbox and on E. none of the other options presented, The surface of the cells of some Pseudomonas species are covered in numerous threadlike structures. B. All have sporic life cycles with isomorphic or heteromorphic generations. 2008 ). allows scientists to cause mutations in the DNA thereby killing the They form an endosymbiotic mutualism with plant roots. Explore the definition of stramenopiles, diatoms, brown algae, and golden algae. All other systems show no abnormality. Flagella occur in both prokaryotes and eukaryotes. When a ciliate reproduces asexually by mitosis B. Eukaryotic flagella have the motor protein dynein whereas the prokaryotic one does not. Archaea, Bacteria, and Eukarya are: [10][11] The name "stramenopile" has been discussed by J. C. D. the ability to detect and move away from sources of light Chlorarachniophytespossess plastids that are considered to have been acquired by secondary endosymbiosis with a green alga. They both absorb nutrients from their environment. - Possess 2 simple flagella for locomotion - Produce significant blooms. D. purple Many stramenopiles also have an additional flagellum that lacks hair-like projections. A. When a certain number of individuals have assembled, the chemical signal is strong enough to induce the aggregation to respond collectively to stimuli. Forams have a sporic life cycle. D. They are methanogens. -They are parasitic autotrophs. B. that all protists are more closely related to each other than they are to any other kind of organisms animals and fungi C. families produce a diploid nucleus. D. All three domains diverged from a common ancestor at the same time. A few months later, it is buried by sediment in a massive landslide, but by this time, bacteria have fully decomposed its soft tissues. Diatoms are major contributors to global carbon cycles because they are the most important autotrophs in most marine habitats. They have thread-like (filose) pseudopodia or a cytoplasmic web that they use for trapping organic matter or prey. The adaptive significance of sexual reproduction is that it: Some dinoflagellates are bioluminescent. In most species, the hairs are attached to flagella, in some they are attached to other areas of the cellular surface, and in some they have been secondarily lost (in which case relatedness to stramenopile ancestors is evident from other shared cytological features or from genetic similarity). They may arise from asexual reproduction. meiosis to produce four haploid micronuclei, of which three also to the pathogen. B. O nonmotile protists. Evidence of Common Ancestry and Diversity | manoa.hawaii.edu C. respond to light with the aid of flotation devices E. Spudsik emeraldensis. B. micronucleosis D. gas vesicles [20] They are usually supported by four microtubule roots in a distinctive pattern. E. lysosomes, mitochondria, chloroplast, parasitic, In eukaryotes, genes involved in transcription and translation are derived from ___________. E. mixotrophic, Bioluminescence is: 2002; Harper and Keeling 2003); therefore, it is likely that the alveolates diverged sometime after 1,274 MYA, before the split of the cryptophytes in the Chromista. There are roughly 100,000 species of different stramenopiles, most of which are various types of algae. A. Chlamydomonas reinhardtil and Gonium pectorale cells are biflagellate, Pleodorina californica and Volvox have no biflagellate cells. Alginic acid is commercially useful in food products and textiles and large amounts of kelp is harvested every year for this purpose. What organisms are in the phylum Euglenozoa? - Erasingdavid.com Most (about 90%) of the known species of radiolarians are extinct. A. layered rocklike structures formed by cyanobacteria. C. They are photoautotrophs. As a relic of secondary endosymbiosis, stramenopiles possess unusually complex organelle membranes. A. Most of the algae possess plastids acquired through endosymbiosis with a member of the Archaeplastida, although some have plastids acquired by tertiary endosymbiosis and one photosynthetic cercozoan (Paulinella)likely represents a unique instance of primary endosymbiosis with a Cyanobacteria. B. Alveolata disease it causes is: A.diabetes B. malaria C. A. the fusion of two archean cells to form an early eukaryote. C. Directional movement toward the food particle using an amoeboid motion Their storage carbohydrate is chrysolaminarin. fungusE. A. diabetes E. fossilized coral reefs. A. an endosymbiotic relationship between an archaeon and a bacterium. Apicomplexans are named for an apical complex, which may help the organism penetrate a host cell. Some apicomplexans are major human health threats, mostly notably the four species of genusPlasmodiumthat cause malaria, resulting in an estimated 300-900 million deaths per year. one. each cell fuse to form a diploid micronucleus, that (7) divides T or F, Slime molds are in the supergroup Flagellated stramenopiles often have two dissimilar flagella. A. blood B. brain C. lymph glands D. B. of the following statements DOES NOT describe its attributes? the merozoite These function in feeding and/or movement. According to the most widely accepted hypothesis, the origin of the nuclear genome involved: It helped provide a date for the emergence of vertebrates. Chapter Summary - Macmillan Learning 16 B. A. choanoflagellates dinoflagellates identical macronucleus. B. Dinoflagellates: There are about 2,000 described species of dinoflagellates, which are unicellular organisms with two flagella of different morphology. D. They have filose pseudopodia. [a] The most significant autotrophic stramenopiles are the brown algae (wracks and many other seaweeds), and the diatoms.

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