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What are two cestodes for which humans can serve as intermediate hosts?
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- What is the life cycle ofascaris?Which of the following statements regarding tapeworms is false?a) They absorb nutrients from the host through their body wall.b) They complete their life cycles in a single host.c) They are hermaphroditic.d) They cannot be transmitted from human to human.What is the role of the cuticle in the successful propagation of nematodes?
- what is the only known coccidial parasite that does not have intermediate hosts?Consider the process of organogenesis. a) Describe how coelom-status impacts the process of organogenesis. b) How do organs develop and where (in which cavity)? When does this process occur?With respect to nematode reproduction and reproductive structures, which of the following statements are true? (multiple answers) a) parasitic species have smaller eggs than free-living nematodes b) nematodes have amoeboid sperm c) parasites produce more eggs/day/female worm than free-living species d) ovoviviparous species produce eggs that hatch within the uterus, such that larvae are released from females Cuhmit Cuiz
- Is it more beneficial for Neodermata to have one host or two hosts? Neodermatahas two classes: class Trematoda and class Monogenea. Class Trematoda has the subclass Digenea, which has organisms that live through at least two different hosts. An example of this is Fasciola hepatica, the sheep's liver fluke. Class Monogenea has organisms that only need to live through one host. Is it better to have a simple or complex life cycle? Which lives longer? Has more energy? Does more damage or good?How is ornithosis transmitted?The dauer stage of worm development occurs: 1) when there is ample food 2) when there is excess food 3) when the strain of bacteria used to feed the worms is changed 4) when there is too little food
- List the major characteristics of the apicomplexan parasites.Which of the following are true regarding parasites in the phylum Apicomplexa? a) they are intracellular parasites b) when they are inside cells, they exist within a parasitophorous vacuole c) the phylum includes the malaria parasites d) movement of the parasites into cells involves the action of an actomyosin motor e) they only reproduce asexuallyAfter the morula stage whatis the next stage? What is themorphological feature thatdefines this stage?