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Animal Bio 1604 Test 3
Matt Bolek's Zoo 1604 Class - Test 3
55
Biology
Undergraduate 1
10/12/2009

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Cards

Term
Which two Aschelminthes do not molt?
Definition

 

Rotifera and Acanthocephala

Term

Pseudocoelom

 

 

Definition
Body cavity that is not completly lined with mesoderm
Term
Corona
Definition
Ciliated organ in found in lobes around the head of Rotifers . Function in food gathering and locomotion.
Term
Rotifera symmetry and segments?
Definition
Bilateral and unsegmented
Term
Important pseudocoelomates cephalization?
Definition
Concentration of sensory organs on head of animals.
Term
Do pseudocoelomates have circulatory system?
Definition
No, the job is performed by the pseudocoelom fluid.
Term
What is eutely?
Definition

Each indivdual organsim of a species have the same number of cells.

 

 

Term

 

Tiny metazoans (up to 3 mm), that are predominantly freshwater although some are marine and terrestrial (live in mosses). 

 

Definition
Rotifera
Term
What is special about Rotifera feeding structures?
Definition

Have a unique structure called the mastax-trophi complex.

 

Composed of a muscular pharanx and modified jaws withing the mastax.

Term
Main componets of Rotifer nervous system.
Definition

Cephalized cerebral ganglion.

Dorsal and Ventral nerve cords.

Eyes.

Term
What are flame cells?
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.
Term
Rotifera Reproduction?
Definition
Usally dioecious, but some species are without males. In which case there is Parthenogenesis, where females produce offspring from unfertilized eggs.
Term
What is an amictic egg? (Rotifera)
Definition
Eggs produced by mitosis, are diploid, cannot be fertilized.
Term
What is a mictic egg? (Rotifera)
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.
Term
Gastrotrichs Level of Organization
Definition
Triploblastic; Bilateral; unsegmented
Term
Gastrotrichs Body Cavity
Definition
Area between gut and body wall filled with loose organs and mesenchyme (Looks like an Acoelomate)
Term
Gastotrichs Epiderms
Definition
Well developed cuticle with spines.
Term
Gastrotrichs Gut
Definition
Pseduocelomate but looks like aceolmate. Has complete gut.
Term
What are protonephridia?
Definition
Cells that perform osmoregulation for some pseduceolomates.
Term
Important facts about gastroichs nervous system?
Definition
Cephalized
Term
Gastoichs reporduction and life cycle?
Definition
Hermaphoridict and dioceious, with complex life cycle for sexual reproduction.
Term
Bdelliod Rotifers?
Definition
Only have females
Term
What to phyla have protonephridia?
Definition
Rotifera and Gastrotrichs
Term
Nematomropha orginzational information?
Definition
Organs and organ systems. Triploblasitc unsegmented, bileteral, long and thin.
Term
General body information for nemtomorpha?
Definition
Cuticle coverd by aeroleas.
Term
Common name of nematomorpha
Definition
Horsehair worms
Term
What is special about both nematomorpha and Acanthocephla?
Definition
All parastic
Term
Nematomorpha hosts?
Definition
Insects
Term
Level of organization for Acantocephela?
Definition
Organ and organ systems, bilateral, and triploblastic.
Term
Body cavity in nemtomorpha?
Definition
psedocelome is reduced
Term
Nervous system in nematomorpha?
Definition
Cephlization and ventral nerve cord
Term
Reproduction in nematomorpha?
Definition
Sexual males bilobed end mates with females producing eggs.
Term
Special cells in Acanthocephla?
Definition
Hook bearing probosics with hydrolic system.
Term
Acantocephla nervous system?
Definition
Cephlized system with nerve cord
Term
Acantocephla digestive and circulatory system?
Definition
None
Term
Acantocephla life reproduction?
Definition
Males mate with females
Term
Acantocephla life cycle?
Definition
Adults are found in vertebrae host. Eggs released and infect 1st IH which is infective to definitve host.
Term
What is special about Acantocephla?
Definition
The minipulate behavior in order to increase rate of transmission to 1H. Also all species parasitic.
Term
What are the roundworms?
Definition
Nematoda
Term
Nematoda body wall and charicterstics?
Definition
Non semented and elongated body. Body wall has noncellular cuticle which is secreted by the epidermis. Tube within a tube body type.
Term
Nematoda digistive tract?
Definition
Complete
Term
Nematoda Nervous system
Definition
Cephalized with dorsal and ventral nerve cords
Term
Nematoda Movement and Skelton?
Definition
Hydrostatic, cannot move by shorting lenght, instead it moves by udulating motion from muscle contraction.
Term
Nematoda special cells?
Definition
Renette cell, absorb waste from psuedocells and empties them into the outside.
Term
Nematoda reporduction?
Definition
Usally doiecious, often dimorphic (males and females look differant) and spicules (used by male to insert sperm into females)
Term
Nematoda life cycle?
Definition
Egg hatches to J1. J1-J4 molt. Last molt leads to adulthood.
Term
What are pinworms?
Definition
Nematods, use adhesive to diagnose.
Term
Filerial worms and elphentitias
Definition
Are nematoda caused
Term
Zoonoses
Definition
Tansmission from nonhuman to human hosts.
Term
Only molluska with out radula?
Definition
Bivalvia
Term
What is a radula?
Definition
Tounge like organ lined with chitnous teeth used in feeding and digging.
Term
Only mollusk with closed circulatory system?
Definition
Cephlapods, due to predatory nature
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