Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Textbook Question
Chapter 28, Problem 6TY
What is surprising about mixotrophs?
- a. They have no plastids, but they occur in mixed communities with autotrophs.
- b. They have mixed heterotrophic and autotrophic mechanisms of nutrition.
- c. Their cells contain a mixture of red and green plastids.
- d. Their cells contain a mixture of haploid and diploid nuclei.
- e. They consume a mixed diet of algae.
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What are Deuteromycota?
A. They have no known asexual stage.
B. They include fungi that reproduce by conjugation.
C. They have many members that appear to be related to the ascomycetes because of their conidia.
D. They include Penicillium and yeast.
Characteristics properties of this taxon include hyphae
a. Protist
b. Monerans
c. Plants
d. Archean
1. How is genetic variation generated in ciliates? When *
A. a micronucleus replicates its genome many times and becomes a macronucleus.
B. isogametes fuse.
C. micronuclei are exchanged in conjugation.
D. oogamous sexual reproduction occurs.
2. Which of the following does not ascribe to phytoplankton? They *
A. are the main food source for coral reef communities.
B. form the basis of most marine food chains.
C. include the radiolarians and forams.
D. are drifting community of organisms.
3. Which of the following protoctist phyla is incorrectly paired with its pigments? *
A. Phaeophyta-fucoxantin
B. Euglenophyta-chlorophyll b
C. Rhodophyta-phycoerythrin
D. Dinoflagellata-fucoxanthin and chlorophyll c
Chapter 28 Solutions
Biology
Ch. 28.1 - An Introduction to Protists Core Skill:...Ch. 28.2 - Prob. 1CCCh. 28.2 - Evolution and Relationships Concept Check: How do...Ch. 28.2 - Evolution and Relationships Concept Check: How do...Ch. 28.2 - Prob. 4CCCh. 28.2 - Prob. 5CCCh. 28.3 - Prob. 1EQCh. 28.3 - Prob. 2EQCh. 28.4 - Prob. 1CCCh. 28.4 - Prob. 2CC
Ch. 28.4 - Core Skill: Modeling The goal of this modeling...Ch. 28 - Prob. 1TYCh. 28 - Prob. 2TYCh. 28 - Prob. 3TYCh. 28 - Prob. 4TYCh. 28 - What organisms have tertiary plastids? a. certain...Ch. 28 - What is surprising about mixotrophs? a. They have...Ch. 28 - What advantages do diatoms obtain from sexual...Ch. 28 - What are extrusomes? a. hairs on flagella b....Ch. 28 - Prob. 9TYCh. 28 - Prob. 10TYCh. 28 - Prob. 1CQCh. 28 - Why have molecular biologists sequenced the...Ch. 28 - Core Concept: Science and Society Why are the...Ch. 28 - Prob. 1COQCh. 28 - Prob. 2COQ
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which statement about protists is true? a. Protists have many different metabolic lifestyles. b. Almost all protists are parasitic. c. All protists use pseudopods or cilia to locomote. d. All marine protists rid themselves of excess water by means of contractile vacuoles. e. Protists are found only in aquatic habitats.arrow_forwardWhich of the following can be associated with life cycles in protists? Select all that apply. A. alternation of generations B. multicellular haploids and unicellular diploids C. heterotrophic diploids and phototrophic haploids D. meiosis and fertilization E. binary fission F. zygotes producing gametesarrow_forwardHow do pigments such as phycoerythrin in red algae and fucoxanthin inbrown algae benefit these autotrophic protists?a. The pigments provide camouflage, so herbivores cannot see thealgae.b. The pigments absorb blue-green underwater light and transfer theenergy to chlorophyll a for use in photosynthesis.c. The pigments attract aquatic animals that carry gametes betweenseaweeds.d. The pigments absorb UV light that would harm the photosyntheticapparatus.e. All of the above are correct.arrow_forward
- Which of the following is not true for gemmae? *a.They are a small clusters of cells. b.They are lightweight and are blown hundreds of miles -- getting dispersed over a wide area. c.They grow into new plants that are genetically different from of the original plant d. They are easily dislodged by rain, wind, or animals.arrow_forwardWhat are the three stages of sexual reproduction that ascomycetes and basidiomycetes have in common? A. Fragmentation, budding, and spore production B. Meiosis, budding, and karyogamy C. Spore production, plasmogamy, and budding D. Plasmogamy, karyogamy, and meiosisarrow_forwardThe cell walls of fungi are strengthened by chitin, a strong but flexible polysaccharide. Which of these statements about the function of chitin in fungal cell wall is TRUE? a. Chitin-rich walls of fungi improves feeding by facilitated diffusion. b. The movement of water and nutrients into fungal cells creates pressure that could cause them to burst if they were not surrounded by a chitin-rich cell wall. c. The chitin present in fungal cell wall does not impart any advantage in terms of nutrient acquisition from the environment. d. Chitinous tubular cell walls confers motility to multicellular fungi.arrow_forward
- The function of the apical complex in apicomplexans is toa. propel the cell through water.b. penetrate host tissue.c. absorb food.d. detect light.arrow_forwardIn a majority of flowering plants, outof the four megaspores, what is the ratio of functional and degeneratemegaspores?A. 2:2 B. 1:3C. 3:1 D. 4:0arrow_forwardDikaryotic cells A. contain two nuclei per cell B. produce two spores per hypha C. contain diploid nuclei D. have two hyphae per fruiting body E. contain pairs of homologous chromosomesarrow_forward
- How is the life cycle of Ascomycetes different from that of humans? A. Haploid cells undergo meiosis. B. Haploid cells undergo mitosis. C. Diploid cells undergo meiosis. D. Diploid cells undergo mitosis.arrow_forwardLichensa. cannot reproduce.b. need a nitrogen source to live.c. are parasitic on trees.d. are able to live in extreme environments.arrow_forwardWhich of the following does not describe a lychen? A. It usually involves an ascomycete and a green algae or cyanobacterium. B. It posses sori. C It can reproduce asexually by forming soredia. D. It is able to colonize bare rocks and cold habitats.arrow_forward
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