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Why is a single sieve (example, a colander) not an appropriate model to explain the function and structure of a sponge?
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- Discuss the phrase “Sponges work well with so little.” In what particular instance would this be applicable in the life of a sponge? Cite specific examples ( 3) and explain briefly. Discuss the potential use of sponges as monitors of chemical pollutant stress in marine and freshwater ecosystems. Use concepts learned in Ecology. Most sponge species are of leuconoid construction, is this type of sponge construction an advantage or disadvantage?Describe the functions of: pedicellariae, madreporite, dermal gills, Aristotle’s lantern, tube feet, water vascular system.What is the description of the columella of Fire coral (Millepora alcicornis Linnaeus) based on the given text?
- What do you mean by zoospores? Give their structure.To which one of the following types of organisms do mushrooms belong? A. AlgaeB. FernsC. FungiD. LichensWhich of the following is FALSE regarding lamellipodia? their formation is stimulated by extracellular signals their formation requires motor protein activity they extend at the leading edge of crawling cells their formation requires activity of actin-binding proteins they contain branched networks of actin filaments
- Which of the following structures would be found in the mesohyl of a sponge? amoebocytes and choanocytes amoebocytes and spicules spicules and choạnocytes amoebocytes and polypsWhat do you mean by kelps. Give example.Differentiate sycon, ascon and leucon type of canal system. Use illustration to support your answer. What are the criteria used in classification of sponges into classes?
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