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- Test II. Comparing Characteristics. Given the groupings of phyla, please indicate within the prescribe column whether these characteristics belongs to the group. Indicate your answer by writing Y if a characteristic and N if a non-characteristics. If the characteristic is not true to all members of the phylum, then write NY. Characteristics PORIFERA CNIDARIA PLATYHELMIN THES NEMATHELMIN THES MOLLUSCA bilateral symmetry sexual reproduction Characteristics ANNELIDA ARTHROPODA ECHINODERMATA CHORDATA bilateral symmetry sexual reproduction1a. Briefly describe the general characteristics of nematodes, trematodes, and cestodes. b. Differentiate between monoxenous and heteroxenous life cycle, and give an example of a specific parasite each. c. Briefly describe the life cycle of protozoans.Clam I need help with the following questions about Clam When dissecting a clam, what functions of the parts are observed? What is the general feeding strategy of the clam, and how does the digestive system allow it to behave in that way? What is the nature of the circulatory system (open or closed) and is the clam acoelomate, pseudocoelomate, or true coelomate? How does the clam reproduce, obtain oxygen, and get rid of waste?
- Topic: Earthworms 1. What is the function of the setae? 2. What is the function of the openings at segment number 14?I. Differentiate the following according to their general characteristics: a. Nematodes b. Cestodes c. TrematodesIdentify: 14. A synapomorphic feature of Rhizarians that distinguishes them from other amoeboid protist
- Identify: 13. The organism where some ancestral Cercozoans derived their plastidsQuestion:- 2.How might gill bacteria be important for survival in certain lamellibranch bivalves?4. Match the questions in the table below with the appropriate choice indicated. Place your answer letter in the column on the extreme left. Each question has only one answer (= letter). ANSWER QUESTIONS CHOICES 1. What are stinging cells in Cnidaria termed? a. dorsal hollow nerve cord 2. To which Phylum do leeches belong? b. ganoid 3. Which feature is diagnostic of Chordata? c. placoid 4. What type of seales do Chondrichthyes possess? d. nematocysts 5. Type of body flattening in Platyhelminthes e. segmentation 6. Concentration of sensory structures on the anterior region of animals? f. triploblastic 7. Name of structure through which water exits in Porifera? g. annelida 8. Type of circulatory system in annelids h. pentaradial 9. Type of symmetry in Echinodermata i. osculum 10. Name for three layered animals? j. closed k. cephalization 1. lateral m. diploblastic n. playthelminthes o. bilateral p. dorsoventral
- Answer the following questions: 1. Is the cell flexible? 2. How can you determine the anterior and posterior end of ciliate mophologically? 3. How is the oral groove strategically advantageous for the Paramecium sp.?1. Cite 5 characteristics of sponges: 2. Which characteristics are unique to ctenophores? 3. Cnidarians are diploblastic, possessing an ectoderm and endoderm. Name the gelatinous nonliving material found between these two tissues. What cells are found within this gelatinous tissue? List the functions of these cells. 4. Polyp body consists of a tubular sessile body. True or false? 5. Define radial and bilateral symmetry, and protostomes and deuterostomes: 6. The presence of two different body forms, or dimorphism, is seen in the phylum Cnidaria. The form resembles an "upside-down cup" with tentacles, and the body form consists of a tubular sessile body. Hydra is an example of the body form, and a jellyfish is an example of the pody form.For phylum Mollusca, Class Cephalopod 1. Characteristics. List whether the organism is:a. Diploblastic or triploblastic (if applicable) b. Deuterostome or protostome (if applicable) c. Coelomate, pseudocoelomate or eucoelomate (if applicable) 2. Organ/system characteristics. Answer the following for each organism:a. How is their circulatory system? b. Excretory/osmoregulation: How does the organism eliminate waste? What organs do they use? 3. Ecology. Describe/answer the following for each organism:a. Does it have a complete or incomplete digestive system? How does this animal feed?b. Identify any unique feeding structure• Be sure to use the correct terms to identify any unique feeding structure(s) used by the animal.