Concept explainers
To discuss:
The sedimentation of wastes harming the coral reefs.
Introduction:
Coral reefs are “biologically valuable” because coral reefs are homes of thousands of marine species; they provide protection to shorelines and inhabitants living near coastal regions. They also support human life through development of pharmaceuticals to treat life-threatening diseases.
To discuss:
The symbiotic relationship between the dinoflagellates and corals.
Introduction:
Coral reefs are biologically valuable because coral reefs are homes of thousands of marine species; they provide protection to shorelines and inhabitants living near coastal regions. They also support human life through development of pharmaceuticals to treat life-threatening diseases.
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Biology: Life on Earth with Physiology (11th Edition)
- How are diatoms and dinoflagellates used in monitoring water quality? Cite two (2) examples. What are zooxanthellae? Describe their role in symbiotic relationships.arrow_forwardDinoflagellates 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…arrow_forwardDinoflagellates 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…arrow_forward
- Why do hydras have varying colors? I know that for the green hydras, their color was imparted by a symbiotic green algae. But how about for those that are colored brown or pink? (Please don't just copy and paste information in answering this question)arrow_forwardYou have discovered a new species aquatic protist that is a primary producer. It cannot swim on its own. It appears to be resistant to physical damage from wave action due to the presence of a glass-like wall. Which of the following organisms would this organism be most like? A) diatom B) dinoflagellate C) apicomplexan D) red algaarrow_forwardPlankton can be divided into three groups: phytoplankton, ultraplankton, and nekton. True Falsearrow_forward
- Explain the economic importance of horny and stony corals.arrow_forwardWould corals be able to live without zooxanthellae?arrow_forwardThe following are actual mutualistic partnerships that involve a protist and a host organism; which is the exception? Trichomonas and humans Cellulose-digesting gut protists and wood-eating termites Protists living in hypersaline /anoxic waters always associated with bacteria Algae and certain foraminiferans Photosynthetic dinoflagellates and reef-building coral animalsarrow_forward
- List 3 environmental conditions that allow for good coral growth.arrow_forwardLichens are a mutualistic relationship between a fungus and an alga or cyanobacterium, or both. The diagram below shows their symbiotic relationship. What is the role of fungi in lichens?arrow_forwardSponge Bob notices that his pal Gary is suffering from slimotosis, which occurs when the shell develops a nasty slime and gives off a horrible odor. His friend Patrick tells him that rubbing seaweed on the shell is the perfect cure, while Sandy says that rubbing Dr. Kelp's solution will be a better cure. Sponge Bob decides to test this cure by rubbing Gary with 5 milliliters of seaweed solution on half of his shell and rubbing 5 milliliters of Dr. Kelp's solution on the other half of Gary's shell. What is the control variable? the type of solution O the absence of slimotosis the same amount of solution used on both halves of the shellarrow_forward
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