Briefly outline (you may use a drawing, but label and explain) the general life

Question

Briefly outline (you may use a drawing, but label and explain) the general life cycle of Plasmodium vivax. What is the specific intermediate host of this parasite? Where does the parasite reside while living in this host? What symptoms are exhibited by human carriers of this infection and what specifically causes these symptoms? (10 pts) A. B. Briefly outline (you may use a drawing, but label and explain) the general life cycle of Clonorchis sinensis. C. Explain 3 ways that infection with Schistosoma can be prevented. Why is this parasite so harmful? (4 pts) D. Briefly describe the unique role of the glochidium larva in the reproduction and dispersal of the Bivalvia. E. Briefly explain how sponges feed. Be sure to name specific cell types involved in the feding process. (4 F. Briefly describe the adaptive value of the mictic/amictic reproductive cycle of the Rotifera. (4 pts) G. Why are coral reefs generally limited to shallow marine waters? How do zooxanthellae contribute to the H. Briefly explain the mechanism for pseudopodial movement in the Amoeba. (4 pts) What is the common name of this organism? (6 pts) (4 pts) pts) welfare of hermatypic corals? How do non-hermatypic corals feed? (6 pts)

Explanation / Answer

H) Amoeba shows characteristic amoeboid movements by the formatin finger like temporary processes, the peudopodia. These are broad and with rounded tips and are called lobopodia. These are formed as aresult of flowing forward of cytoplasm. When moving amoeba may put out several peudopodia but evetually progresses through just one broad anterior pseudopodium. Amoeba moves with an average speed of 1 micron per second.There are many thoeries by which amoeboid movements can be explained. Out of these Reversible gel- sol transformation theory is the most accepted explaination of amoeboid movement. This theory suggests that solation at the anterior occurs into which endoplasm flows under pressure generated by contraction of the cortical plasmagel at the posterior end. This results in the propulsion or force causing movement in Ameoba.

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