Term
| Which two Aschelminthes do not molt? |
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Definition
Rotifera and Acanthocephala |
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Term
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Definition
| Body cavity that is not completly lined with mesoderm |
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Term
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Definition
| Ciliated organ in found in lobes around the head of Rotifers . Function in food gathering and locomotion. |
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Term
| Rotifera symmetry and segments? |
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Definition
| Bilateral and unsegmented |
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Term
| Important pseudocoelomates cephalization? |
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Definition
| Concentration of sensory organs on head of animals. |
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Term
| Do pseudocoelomates have circulatory system? |
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Definition
| No, the job is performed by the pseudocoelom fluid. |
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Term
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Definition
Each indivdual organsim of a species have the same number of cells.
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Term
Tiny metazoans (up to 3 mm), that are predominantly freshwater although some are marine and terrestrial (live in mosses).
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Definition
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Term
| What is special about Rotifera feeding structures? |
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Definition
Have a unique structure called the mastax-trophi complex.
Composed of a muscular pharanx and modified jaws withing the mastax. |
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Term
| Main componets of Rotifer nervous system. |
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Definition
Cephalized cerebral ganglion.
Dorsal and Ventral nerve cords.
Eyes. |
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Term
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Definition
| Specialized exratory cells stucture consisting of one or several cells containing a tuft of cilia and located on the end of a minute tubial. |
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Term
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Definition
| Usally dioecious, but some species are without males. In which case there is Parthenogenesis, where females produce offspring from unfertilized eggs. |
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Term
| What is an amictic egg? (Rotifera) |
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Definition
| Eggs produced by mitosis, are diploid, cannot be fertilized. |
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Term
| What is a mictic egg? (Rotifera) |
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Definition
| Haploid eggs produced by volatile enviormental stimuls. If not fertilized they devlop into males. If fertilized they devlop a heavy shell, and lie dormant until winter. Once hatched, the offspring are female. |
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Term
| Gastrotrichs Level of Organization |
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Definition
| Triploblastic; Bilateral; unsegmented |
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Term
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Definition
| Area between gut and body wall filled with loose organs and mesenchyme (Looks like an Acoelomate) |
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Term
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Definition
| Well developed cuticle with spines. |
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Term
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Definition
| Pseduocelomate but looks like aceolmate. Has complete gut. |
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Term
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Definition
| Cells that perform osmoregulation for some pseduceolomates. |
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Term
| Important facts about gastroichs nervous system? |
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Definition
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Term
| Gastoichs reporduction and life cycle? |
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Definition
| Hermaphoridict and dioceious, with complex life cycle for sexual reproduction. |
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Term
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Definition
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Term
| What to phyla have protonephridia? |
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Definition
| Rotifera and Gastrotrichs |
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Term
| Nematomropha orginzational information? |
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Definition
| Organs and organ systems. Triploblasitc unsegmented, bileteral, long and thin. |
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Term
| General body information for nemtomorpha? |
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Definition
| Cuticle coverd by aeroleas. |
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Term
| Common name of nematomorpha |
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Definition
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Term
| What is special about both nematomorpha and Acanthocephla? |
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Definition
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Term
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Definition
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Term
| Level of organization for Acantocephela? |
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Definition
| Organ and organ systems, bilateral, and triploblastic. |
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Term
| Body cavity in nemtomorpha? |
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Definition
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Term
| Nervous system in nematomorpha? |
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Definition
| Cephlization and ventral nerve cord |
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Term
| Reproduction in nematomorpha? |
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Definition
| Sexual males bilobed end mates with females producing eggs. |
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Term
| Special cells in Acanthocephla? |
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Definition
| Hook bearing probosics with hydrolic system. |
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Term
| Acantocephla nervous system? |
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Definition
| Cephlized system with nerve cord |
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Term
| Acantocephla digestive and circulatory system? |
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Definition
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Term
| Acantocephla life reproduction? |
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Definition
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Term
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Definition
| Adults are found in vertebrae host. Eggs released and infect 1st IH which is infective to definitve host. |
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Term
| What is special about Acantocephla? |
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Definition
| The minipulate behavior in order to increase rate of transmission to 1H. Also all species parasitic. |
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Term
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Definition
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Term
| Nematoda body wall and charicterstics? |
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Definition
| Non semented and elongated body. Body wall has noncellular cuticle which is secreted by the epidermis. Tube within a tube body type. |
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Term
| Nematoda digistive tract? |
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Definition
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Term
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Definition
| Cephalized with dorsal and ventral nerve cords |
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Term
| Nematoda Movement and Skelton? |
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Definition
| Hydrostatic, cannot move by shorting lenght, instead it moves by udulating motion from muscle contraction. |
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Term
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Definition
| Renette cell, absorb waste from psuedocells and empties them into the outside. |
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Term
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Definition
| Usally doiecious, often dimorphic (males and females look differant) and spicules (used by male to insert sperm into females) |
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Term
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Definition
| Egg hatches to J1. J1-J4 molt. Last molt leads to adulthood. |
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Term
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Definition
| Nematods, use adhesive to diagnose. |
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Term
| Filerial worms and elphentitias |
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Definition
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Term
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Definition
| Tansmission from nonhuman to human hosts. |
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Term
| Only molluska with out radula? |
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Definition
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Term
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Definition
| Tounge like organ lined with chitnous teeth used in feeding and digging. |
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Term
| Only mollusk with closed circulatory system? |
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Definition
| Cephlapods, due to predatory nature |
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