Concept explainers
Under certain environmental conditions, the microscopic alga Karenia brevis grows quickly, creating blooms that can make the ocean appear red or brown. K. brevis produces powerful toxins called brevetoxins, which have killed millions of fish. In addition to killing fish, brevetoxins can become concentrated in the tissues of mollusks that feed on K. brevis. People who eat these bivalves (e.g., clams, mussels, and oysters) may suffer from paralytic shellfish poisoning, a food poisoning that can cause severe gastrointestinal and neurological symptoms, such as tingling in the fingers or toes. Use your results to explain why these so-called “red tides” occur in coastal water.
Want to see the full answer?
Check out a sample textbook solutionChapter 34 Solutions
Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology)
- Visit the ANEMONE page:http://www.aquariumofpacific.org/onlinelearningcenter/species/clown_anemonefish10. What type of symbiotic relationship do clownfish and anemones exhibit: mutualism, commensalism, or parasitism? Explain.11. How are clown fishes protected from the paralyzing sting of the anemones?arrow_forwardA person has been cured of malaria, after 2 months a malarial attack has developed, although the person was not bitten by a mosquito. What is the cause of relapse infection? Schizont in liver cell Hypnozoite in liver cell Gametocytes in red blood cell Merozoite in red blood cellarrow_forwardThe maroon clownfish can't meet all of its survival needs without the Bubble tip anemone.what survival need does the anemone providearrow_forward
- Why do we have to use special techniques for the recovery of pinworm eggs? Explainarrow_forwardProtozoans that absorb decaying organic debris and solid matter are called:arrow_forwardSome literature lists the 4 groups of protozoans as: 1) Flagellates 2) Amoebas 3) Ciliates 4) Sporozoans But other sources list the 4 groups as: 1) Flagellates 2) Amoebas 3) Heliozoans 4) Ciliates Compare and contrast heliozoans vs. sporozoans. Explain why one would replace the other in literature sources.arrow_forward
- The function of the contractile vacuole in many freshwater protozoans is to: a) aid in mechanical digestionb) store carbon dioxidec) eliminate wastes such as ammoniad) eliminate excess waterarrow_forwardPlankton can be divided into three groups: phytoplankton, ultraplankton, and nekton. True Falsearrow_forwardEach of the following statements concerning Ascaris lumbricoides is correct* Ascaris lumbricoides can cause pneumonia Ascaris lumbricoides is one of the largest nematode A. lumbricoides is transmitted by ingestion of eggs Both dogs and cats are intermediate hosts of Ascaris lumbricoidesarrow_forward
- Comprehensive Medical Assisting: Administrative a...NursingISBN:9781305964792Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy CorreaPublisher:Cengage LearningBiology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning