Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 21, Problem 3RQ
what is the importance of dinoflagellates in marine ecosystem? What can happen to marine ecosystems when certain dinoflagellate species reproduce rapidly?
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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?
Describe the importance of dinoflagellates in marine ecosystems and the situation which can arise in
marine ecosystems when certain dinoflagellates species reproduce rapidly.
This is marine biology
a) Where do macroalgae tend to live? Middle of the ocean or continental shelf? Why?
b) What are two examples of “stiff” algae? What are they made of and what phylum do they belong to?
c) What colors do green algae use for photosynthesis? What color do they NOT use?
d) Which algal phylum is best adapted to deeper water? Why?e) Would you rather go swimming at a Japanese beach or a California beach? Explain
Chapter 21 Solutions
Biology: Life on Earth with Physiology (11th Edition)
Ch. 21.1 - define protist and describe the various ways in...Ch. 21.1 - What do biologists mean when they say that sex and...Ch. 21.1 - describe a scenario for the evolutionary origin of...Ch. 21.1 - describe the major effects of protists on people...Ch. 21.2 - Just as the invasive Cauterpa seaweed often...Ch. 21.2 - Cauferpa taxifolia, the invasive seaweed that...Ch. 21.2 - Is it important to stop the spread of Caulerpa?...Ch. 21.2 - list the major protist taxonomic groups and the...Ch. 21.2 - Imagine that you are a physician consulting with a...Ch. 21.2 - If you like sushi, youve probably eaten a sushi...
Ch. 21.2 - describe some examples of how members of each...Ch. 21 - The internal structure of many protists is much...Ch. 21 - Which of the following statements about protists...Ch. 21 - List the major differences between prokaryotes and...Ch. 21 - What are some important benefits and services...Ch. 21 - Prob. 2FIBCh. 21 - The harmful protist blooms known as red tides are...Ch. 21 - What is secondary endosymbiosis?Ch. 21 - Protist chloroplasts surrounded by four-layer...Ch. 21 - The organism that causes malaria belongs to which...Ch. 21 - what is the importance of dinoflagellates in...Ch. 21 - Prob. 4FIBCh. 21 - The finger-like extensions of the cell membrane...Ch. 21 - What is the major ecological role played by...Ch. 21 - Prob. 5FIBCh. 21 - Prob. 5MCCh. 21 - Which protist group consists entirely of parasitic...Ch. 21 - Prob. 6FIBCh. 21 - Which protist groups include seaweeds?Ch. 21 - Which protist groups include species that use...
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- How are diatoms and dinoflagellates used in monitoring water quality? Cite two (2) examples. What are zooxanthellae? Describe their role in symbiotic relationships.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_forwardWhat is the source of carbon for fungi? What is the source of carbon for protozoa? What is the source of carbon for bacteria? What is the source of carbon for viruses? What is the source of carbon for helminths? What is the source of carbon for algea?arrow_forward
- Describe the morphological and ecological attributes of the red algae? How do they compare to dinoflagellates, diatoms, and brown algae? Are red algae found in Pennsylvania? How are they important to humans? And are they edible?arrow_forwardWith the aid of life-cycle diagrams, describe the different types of sexual reproduction in marine macroalgaearrow_forwardWhich groups of algae produce the following important products: (1) agar, (2) algin, (3) nerve poisons, (4) abrasives for polishes?arrow_forward
- What are modes of reproduction in brown algae?arrow_forwardWhat are diatom blooms and why are they of particular interest to climate change scientists?arrow_forwardCool water, or "deep water" reefs tend to be built by... a) Photosynthetic corals O b) Non-photosynthetic corals O c) Chemosynthetic bacteria O d) Mermaidsarrow_forward
- Which of the following is true about Heterocysts? Choose all possible answers. Are the sites of nitrogen fixation in cyanobacteria are surrounded by a thickened cell wall that slows the diffusion of O2 into the cell and lack photosystem II fluoresce as strongly as vegetative cells are able to fix CO2 have intercellular connections with adjacent vegetative cells that allow for mutualarrow_forwardWhat is a lichen? Why is this considered an example of a parasite-host relationship? Why might you also consider it a mutualistic interaction?arrow_forwardwhat are distinguishes plasmodia and cellular slime molds? What are the ecological roles of protists? Why Are photosynthetic protists so important to marine and aquatic ecosystems? what limits the growth of these organisms and what causes blooms> What will be affected of marine produces are disrupted?arrow_forward
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