DrMartin outlines ClassificationthruReproII

DrMartin outlines ClassificationthruReproII - General...

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General Biology 102 - Spring 2008 Busch/Livingston Sections Only Outlines and Key Terms Dr. Diana W. Martin Classification - Chapter 23 I. Classification systems Is just any grouping of organisms called a taxon (pl. taxa)? What is the relationship between taxonomy and systematics ? Was the system of classification originally established by Linnaeus (Carl von Linne) a natural classification system or an artificial classification system ? Place the following in the proper hierarchical order, from most inclusive to least inclusive: class, family, genus, order, kingdom, phylum (phyla), species II. The species How does the biological species concept differ from the morphospecies concept? Do they always lead to different conclusions? Why or why not? What is a binomen ? . . . a specific epithet ? III. Evolution (Fig. 18-10) Give an example of a character state . How can homologous characters be distinguished from analogous characters ? Which are a consequence of convergent evolution ? If a classification system is entirely based on phylogeny , are the taxa monophyletic or polyphyletic ? 1
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General Biology 102 - Spring 2008 Busch/Livingston Sections Only Outlines and Key Terms Dr. Diana W. Martin ANIMAL DIVERSITY I and II I. Kingdom Protista A. “Algae” (plant-like protists discussed in 101) B. "Protozoa" (animal-like protists) What is meant by nutrition by ingestion ? Which protozoa have a test ? 1. Amoebas What is the function of pseudopodia (sing. pseudopodium )? 2. Actinopods (radiolarians) How do actinopods use their axopods ? 3. Foraminiferans 4. Flagellates 5. Ciliates (Figs. 25-7, 25-8) What happens to the macronucleus and the micronucleus when ciliates undergo conjugation ? 6. Apicomplexans (sporozoans) II. Kingdom Animalia (Table 29-1) A. Subkingdom Parazoa - Phylum Porifera (sponges, Fig. 29-9) Is a spongocoel a digestive cavity? What are the roles of mesohyl, porocytes, choanocytes (collar cells), amoebocytes, and spicules? 2
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General Biology 102 - Spring 2008 Busch/Livingston Sections Only Outlines and Key Terms Dr. Diana W. Martin B. Subkingdom Eumetazoa What implications do radial symmetry and bilateral symmetry have for an animal’s life style? (Fig. 29-3) 1. Animals with radial symmetry and two body layers Sketch the body plan of a diploblastic animal, including the epidermis , gastrodermis , mesoglea , and gastrovascular cavity . a. Phylum Cnidaria (formerly Coelenterata) (Figs. 29-11, 29-12, 29-10, 29-13) How does a polyp differ from a medusa ? What is the function of a cnidocyte? What is its relationship to a nematocyst ? Class Hydrozoa (hydras, Portugese man o’war) Class Scyphozoa (jellyfish) Class Anthozoa (sea anemones) b. Phylum Ctenophora (ctenophores) 2. Animals with bilateral symmetry and three body layers (Fig 29-4) Sketch the body plans of 3 kinds of triploblastic animals: acoelomates , pseudocoelomates , and true coelomates . Label the ectoderm (blue), endoderm (yellow), mesoderm (red or pink), and digestive cavity in each sketch. Why is bilateral symmetry associated with
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DrMartin outlines ClassificationthruReproII - General...

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