BIOLOGY
4th Edition
ISBN: 9781266739606
Author: Hoefnagels
Publisher: MCG
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Chapter 18, Problem 8WIO
Summary Introduction
To determine:
Why overwatering the plants make them more susceptible to infection by some kinds of heterotrophic protists.
Concept introduction:
Protists are simple eukaryotic cells that can be unicellular or multicellular. Protists often have cellular organelles and they demonstrate both animal and plant like characteristics. Protists can be heterotrophic or autotrophic. Heterotrophic protists cannot make their own food.
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A) Protist diseases can be hard to treat because
Group of answer choices
some use brown or red pigments, rather than green pigments, for photosynthesis
they have prokaryotic cells
anti-protist medicines have too much selective toxicity
they are heterotrophic
they have evolved defenses that make them invisible to the immune system
B)
A plant without vascular tissues will likely be
Group of answer choices
small and/or flat
found primarily in dry habitats, such as deserts
tall
unable to photosynthesize
unable to reproduce sexually
Why have molecular biologists sequenced the genomes of severalparasitic protists?
Protists are a group of eukaryotic organisms that are brought together by scientists mostly by convenience. I) What is the relationship between all protists that ties them together? ii) provide an example of a autotrophic and heterotrophic protists group, iii) what is the relationship between the multicellular eukaryotes and the protists?
Chapter 18 Solutions
BIOLOGY
Ch. 18.1 - What features define the protists?Ch. 18.1 - Prob. 2MCCh. 18.1 - Why are evolutionary biologists interested in...Ch. 18.2 - Prob. 1MCCh. 18.2 - Prob. 2MCCh. 18.2 - List and describe the characteristics of the major...Ch. 18.3 - What mode of nutrition do the slime molds and...Ch. 18.3 - Prob. 2MCCh. 18.3 - Prob. 3MCCh. 18.4 - Prob. 1MC
Ch. 18.4 - Prob. 2MCCh. 18.4 - List three diseases caused by flagellated...Ch. 18.4 - Compare and contrast amoebae, foraminiferans, and...Ch. 18.4 - How do ciliates move and eat?Ch. 18.4 - Prob. 6MCCh. 18.5 - Prob. 1MCCh. 18.5 - What features unite some of the major lineages of...Ch. 18.6 - Use the food chain in figure 18.21a to explain why...Ch. 18.6 - Prob. 2MCCh. 18 - Which of the following is NOT a characteristic of...Ch. 18 - Suppose you are studying a protist under a...Ch. 18 - Some protist lineages arose from secondary...Ch. 18 - Prob. 4MCQCh. 18 - Why are DNA sequences useful in the classification...Ch. 18 - Explain why evolutionary biologists are interested...Ch. 18 - The amoeba Pelomyxa palustris is a single-celled...Ch. 18 - Describe the relationship between nutrient...Ch. 18 - Explain why the fossil record for diatoms is much...Ch. 18 - How is it adaptive for a red alga to have pigments...Ch. 18 - How are kelp similar to trees? How are they...Ch. 18 - Prob. 7WIOCh. 18 - Prob. 8WIOCh. 18 - Give three examples of protists for which the...Ch. 18 - Suppose someone hands you a microscope and a...Ch. 18 - Review the Survey the Landscape figure in the...Ch. 18 - Prob. 2PITCh. 18 - Molecular data have changed protist...
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- Why are red algae red? What distinguishes plasmodial and cellular slime molds? What are the ecological roles of protists? Why are photosynthetic protists so important to marine/aquatic ecosystems? What limits the growth of these organisms and what causes blooms? What will be affected if marine producers are disrupted?arrow_forwardIs protist dna in a nucleus unicellular or multicellular?According to the phylogeny presented in this chapter which protists are in the same eukaryotic supergroup as plants a) green algae b) dinoflagellates c) red algaed both a and c in a lifecycle with alternation of generations multicellular haploid forms alternate with a unicellular haploid forms b unicellular diploid formsc multicellular haploid forms d) multicellular diploid formsarrow_forwardImagine you are in a developing country where sanitation is poor. Having read about paracitic protists in water and damp soil, what would you consider safe to drink? What foods might be best to avoid or which methods might make them safe to eat?arrow_forward
- Which of the following correctly matches the protist to the mode of nutrition? Chara- Autotrophy, Euglena - Mixotrophy, Amoeba - Heterotrophy Chara - Heterotrophy, Euglena - Mixotrophy, Amoeba - Heterotropy Chara - Mixotrophy, Euglena- Heterotrophy, Amoeba - Autotrophy They all are capable of Heterotrophyarrow_forwardWhy would it be disadvantageous for a plant to form a symbiotic relationship with a mycorrhizal fungus when phosphate is abundant in the soil surrounding its roots?arrow_forwardMycorrhizal fungi form obligate symbiotic relationships within plants. They are able to fix N2 into a usable form of nitrogen. In exchange, they receive nutrition from the plant. Which of the following is a true statement concerning mycorrhizal fungi? a) Finding a host plant is not crucial to their survival. b) They are a dominant species. c) They cannot survive without the host plant. d) They are considered plant parasites.arrow_forward
- The microorganisms responsible for symbiotically fixing nitrogen in the nodules on the roots of legume plants are: bacteria actinomycetes algae fungi O autotrophsarrow_forwardAre all fungi detrimental for other organisms? Explain why if yes or noarrow_forwardWhich of the following processes are involved in thereproduction of protists ?(a) Binary fission and budding(b) Cell fusion and zygote formation(c) Spore formation and cyst formation(d) All of the above Please try to break the solutions into as many steps as practically possible and the steps should come one by one and they should be short and crisp and plagiarism-free.arrow_forward
- Which parasitic protist evades the host immune system by altering its surface proteins with each generation? a. Paramecium caudatum b. Trypanosoma brucci c. Plasmodium falciparum d. Phytophthora infrstansarrow_forwardHow does killing Anopheles mosquitoes affect the Plasmadium protists?arrow_forward. Fungi with hyphae ________. A) acquire their nutrients by phagocytosis B) are called yeasts C) have cell walls that consist mainly of cellulose microfibrils D) are adapted for rapid directional growth to new food sources E) reproduce asexually by a process known as buddingarrow_forward
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