Biology: Concepts and Investigations
3rd Edition
ISBN: 9780073525549
Author: Mariëlle Hoefnagels Dr.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 18.6, Problem 1MC
Use the food chain in figure 18.21a to explain why bioluminescence is adaptive to dinoflagellates.
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Dinoflagellates are unicellular, marine protists. Dinoflagellates are bioluminescent, but only at night. During the day, they carry out photosynthesis similar to other autotrophs. At night, however, they bioluminesce every time they are disturbed. They are often seen in the wakes of ships at night. While the reason for this bioluminescence is not fully understood, many scientists concur that it is a form of self-defense. If small fish begin to feed upon the protists, the protists will begin to bioluminesce. These flashes of light in the dark water can alert larger fish and draw them towards the small fish, upon which they prey. By making the small fish vulnerable, the dinoflagellates are able to protect themselves.
Based on the information above, a researcher decides to design an experiment in which she is testing how long it takes for dinoflagellates to recover after different amounts of disturbance. She maintains 10 containers of dinoflagellates with similar temperature, salinity and…
Dinoflagellates are unicellular, marine protists. Dinoflagellates are bioluminescent, but only at night. During the day, they carry out photosynthesis similar to other autotrophs. At night, however, they bioluminesce every time they are disturbed. They are often seen in the wakes of ships at night. While the reason for this bioluminescence is not fully understood, many scientists concur that it is a form of self-defense. If small fish begin to feed upon the protists, the protists will begin to bioluminesce. These flashes of light in the dark water can alert larger fish and draw them towards the small fish, upon which they prey. By making the small fish vulnerable, the dinoflagellates are able to protect themselves.
Based on the information above, a researcher decides to design an experiment in which she is testing how long it takes for dinoflagellates to recover after different amounts of disturbance. She maintains 10 containers of dinoflagellates with similar temperature, salinity and…
Compare the phylogenetic tree of protists with the secondary endosymbiosis theory which proposes how photosynthetic protists evolved. Are both reconcilable? Explain.
Chapter 18 Solutions
Biology: Concepts and Investigations
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 - 2. List some examples of protist diversity. How do...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 - Prob. 6WIOCh. 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 - Prob. 1PITCh. 18 - Molecular data have changed protist...Ch. 18 - Prob. 3PIT
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- Coral reefs, bleaching, and climate change Where are the dinoflagellates located inside the coral polyp? What part of the dinoflagellate (the algae) is actually damaged by excess energy When stimulated by too much energy (light or heat), what does the algae begin to produce? And how does this product impact the coral poly? Why is bleaching so detrimental to the coral animal itself? Why is bleaching damaging to the entire reef ecosystem?arrow_forwardUsing Paramecium as an example, explain how a protist eats, respires, digests food, reproduces, and maintains an internal water balance (osmoregulation), all within its single-celled body.arrow_forwardWrite short notes on the following (a) Amoebas (b) spore forming protistsarrow_forward
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