Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 23, Problem 19RQ
A marine biologist analyzing water samples notices a protist with a calcium carbonate shell that moves by pseudopodia extension. The protist is likely to be closely related to which species?
- Fuligo septica (Dog Vomit slime mold)
- Circogonia icosahedra (Radiolarian)
- Eugiena viridis
- Ammonia tepida
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Chapter 23 Solutions
Biology 2e
Ch. 23 - Figure 23.5 What evidence is there that...Ch. 23 - Figure 23.25 Which of the following statements...Ch. 23 - Figure 23.28 Which of the following statements...Ch. 23 - What event is thought to have contributed to the...Ch. 23 - Which characteristic is shared by prokaryotes and...Ch. 23 - Mitochondria most likely evolved by ___________ ....Ch. 23 - Which of these protists is believed to have...Ch. 23 - In 2016, scientists published the genome of...Ch. 23 - Which of the following observations about a...Ch. 23 - Protists that have a pellicle are surrounded by...
Ch. 23 - Piotists with the capabilities to perform...Ch. 23 - Which of these locomotor organs would likely be...Ch. 23 - Alternation of generations describes which of the...Ch. 23 - The amoeba E. histolytica is a pathogen that forms...Ch. 23 - Which protist group exhibits mitochondrial...Ch. 23 - Conjugation between two Paramecia produces total...Ch. 23 - What is the function of the raphe in diatoms?...Ch. 23 - What genus of piotists appears to contradict the...Ch. 23 - A marine biologist analyzing water samples notices...Ch. 23 - An example of carbon fixation is photosynthesis...Ch. 23 - Which parasitic protist evades the host immune...Ch. 23 - Which of the following is not a way that piotists...Ch. 23 - Describe the hypothesized steps in the origin of...Ch. 23 - Some aspects of eukaryotes are more similar to...Ch. 23 - Explain in your own words why sexual reproduction...Ch. 23 - Giaidia iamblia is a cyst-forming protist parasite...Ch. 23 - Explain how the definition of protists ensures...Ch. 23 - The chllorophyte (green algae) genera Ulva and...Ch. 23 - Why might a light-sensing eyespot be ineffective...Ch. 23 - Opisthokonta includes animals and fungi, as well...Ch. 23 - Describe two ways in which paramecium differs from...Ch. 23 - How does killing Anopheles mosquitoes affect the...Ch. 23 - Without treatment, why dees African sleeping...Ch. 23 - Describe how increasing stress to the ocean would...
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- Protists with the capabilities to absorb nutrients from dead organisms are called ______. a. photoautotrophs b. autotrophs c. saprobes d. heterotrophsarrow_forwardA protist that contains contractile vacuoles most likely lives ______. in ice in a marine environment in fresh water within the cells of another organismarrow_forwardWhich of the following plant-like protists exhibits behavior of both plants and animals? Group of answer choices euglenoids algae diatoms dinoflagellatesarrow_forward
- What genus of protists appears to contradict the statement that unicellularity restricts cell size? a. Dictyostelium b. Ulva c. Plasmodium d. Caulerpaarrow_forwardWhich of the following is NOT a characteristic of all protists?a. Unicellularb. Cells containing membrane-bounded organellesc. Cells containing a nucleusd. Eukaryoticarrow_forwardFill in the blanks Bacteria inside termites are ___________ when they live on the outside of protists they interact with. Protists inside termites are ___________ because they live inside the termites they interact with. Trichonympha is one kind of termite __________ that has bacteria living on it and inside it.arrow_forward
- Which of these protists is believed to have evolved following a secondary endosymbiosis? a. green algae b. cyanobacteria c. red algae d. chlorarachniophytesarrow_forwardWhich of the following protists photosynthesize? Group of answer choices Autotrophs Heterotrophs Mixotrophsarrow_forwardif global warming trends continue, many species, including protists and fungi, may become extinct due to habitat loss. Name two ecological roles of protists and two ecological roles of fungiarrow_forward
- You are given five test tubes, each containing an unknown protist, and your task is to read the description below and match these five protists that you know to the correct test tube. -Paramecium -Pfiesteria (dinoflagellate) -Navicula (diatom) -Plasmodium -Amoeba In test tube 1, you sketch the organism and come up with a picture that looks like the one below. You note the organism appears to be “eating” the smaller microorganism. Chemical analysis of test tube 2 indicates the presence of a chemical that is toxic to fish and humans. In test tube 3, you detect the presence of substantial amounts of silica. Microscopic analysis of organisms in tube 4 reveals the presence of an apicoplast in the organism Microscopic analysis of the contents in tube 5 reveals the presence of one large macronucleus and several small micronuclei in each organism Match the description with the correct protistarrow_forwardThe following groups of protists will be covered in lecture: Amoebazoa, Excavate-euglena, Alveolata: ciliates, dinoflagellates, apicomplexan; Stramenopiles: diatoms and brown algae, and Plantae: chlorophytes. How do these organisms compare in their -general type of nutrition (autotroph, heterotroph), -ecological roles (parasites, decomposers, importance in food chains) -general structures (cell walls, structures that help them move and feed, single vs multicellular) -reproduction (asexual, sexual) -presence or absence of alternation of generations, - degree of complexity of life cycles -habitats that they are found inarrow_forwardWhich clade does not have protists as members? Chromalveolata Excavata Unikonta Archaeplastida none of these are correctarrow_forward
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