Protists
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| show | Protists were the first eukaryotes to evolve.
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| Which likely led to the evolution of eukaryotes from early prokaryotic organisms? | show 🗑
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| Infoldings of the prokaryotic plasma membrane are thought to have given rise to the eukaryotic endomembrane system that includes which of the following? | show 🗑
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| According to the endosymbiotic theory, non-photosynthetic, energy-producing bacteria were engulfed by larger bacteria and evolved into the organelles called ____ | show 🗑
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| show | A photosynthetic bacterium
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| show | Protists
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| The loss of the rigid cell wall and an increase in membrane flexibility were key evolutionary events that likely led to the evolution of | show 🗑
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| show | from infoldings of the plasma membrane
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| How did mitochondria originate, according to the endosymbiotic theory? | show 🗑
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| show | chloroplasts
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| show | A single, circular, closed molecule of DNA, similar to that in bacteria
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| Structures used by protists for locomotion. | show 🗑
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| Protists can exhibit both ___ and ___ reproduction | show 🗑
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| Current evidence suggests that multicellularity in eukaryotes evolved | show 🗑
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| show | bacteria or prokaryotes
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| Which of the following best describes reproduction among protists? | show 🗑
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| show | Parabasalids and diplomonads have multiple flagella while euglenozoans have unique flagella.
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| show | colonies
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| show | A single, circular, closed molecule of DNA, similar to that in bacteria
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| Many amoebas move with "false feet," known as | show 🗑
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| The undulating membrane of parabasalids is used in which of the following? | show 🗑
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| Select features of protists in the supergroup Excavata. | show 🗑
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| Which of the following statements is correct regarding how multicellular eukaryotes likely evolved? | show 🗑
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| show | contractile and osmotic
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| What is the function of the undulating membranes in parabasalids? | show 🗑
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| Among euglenozoa, the kinetoplastids are a second major group that are unique because they have | show 🗑
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| show | One long flagellum and one short flagellum that is located within the reservoir
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| show | Stramenopiles
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| show | a single mitochondrion
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| Which of the following is a branch of the supergroup SAR that is distinguished from other protists by the presence of flattened vesicles stacked in a continuous layer beneath their plasma membrane? | show 🗑
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| Based on current evidence, what is the most likely origin of chloroplasts in members of stramenopila? | show 🗑
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| show | unicellular
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| features of dinoflagellates. | show 🗑
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| show | alveoli
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| show | diatoms
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| Red tides are usually caused by excessive numbers of ___ in the water; these protists produce red pigments that give the phenomenon its name. | show 🗑
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| show | They have alveoli.
Their chloroplasts are similar to those of diatoms or brown algae.
They are protected by plates composed of a cellulose-like material.
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| show | The apical complex
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| show | micronucleus
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| show | Dinoflagellates
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| The apical complex is a cytoskeletal and secretory complex that enables the apicomplexan to do which of the following? | show 🗑
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| show | The macronucleus
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| In ciliates, sexual reproduction involves the process of ___ , during which two individual cells are attached for up to several hours. | show 🗑
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| show | primary and secondary
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| Protists that possess two flagella, plates made of a cellulose-like material, and may be bioluminescent or produce toxins are | show 🗑
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| The archaeplastid group that shares a common ancestor with the land plants is | show 🗑
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| Order the steps of conjugation in ciliates, starting at the top. | show 🗑
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| show | Green algae
Red algae
Glaucophytes
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| show | Charophyta
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| show | The macronucleus
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| show | Rhodophyta
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| show | micronuclei
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| Chlorophytes and charophytes are two lineages of which type of protist? | show 🗑
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| Members of the phylum Rhodophyta are also known as | show 🗑
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| show | Haplodiplontic cycles are found in some multicellular chlorophytes, like Ulva.
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| show | Chlorophytes
Charophytes
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| show | engulf food
move
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| Evidence suggests that members of the Opisthokonta, called ____, are similar to the most likely common ancestor of all animals. | show 🗑
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| show | gametophyte and sporophyte
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| Pseudopods are flowing projections of ____ that are used by many protists for locomotion. | show 🗑
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| Animals, fungi, and choanoflagellates are members of what supergroup? | show 🗑
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| show | Choanoflagellates
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| The flagellum of choanoflagellates is surrounded by a funnel-shaped contractile ____ composed of closely placed ____ | show 🗑
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| show | Choanoflagellates
Animals
Fungi
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| What structure of the choanoflagellates is closely matched in the sponges? | show 🗑
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| Choanoflagellates have a single, emergent ___ surrounded by a funnel-shaped collar. | show 🗑
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