1What are the phylum under Clade Ecdysozoa?
Nematoda and Anthropoda
2What are Ecdysozoans made of externally?
Tougher cuticle made of chitin
3To permit ____, this ____ must be shed or molted, a process called ____.
growth, cuticle, ecdysis
4Describe the Nematoda living...
Free living and parasitic
5Describe the Nematode body plan:
Elongated, cylindrical, tapered at both ends, pseudocoelomate, hydrostatic skeleton, No motile cilia or flagella, Thick cuticle of collagen layers.
6Describe the Nematode body wall...
Longitudinal layer of muscle (No circular layer)
7How are muscle cells unusual in Nematode?
Muscle cells extend a process to the neurons.
8Describe Nematode feeding and digestion:
Simple and complete alimentary canal, muscular pharynx, non-muscular intestine.
9Describe Nematode circulation and gas exchange:
No specialized circulatory and resiratory structures, hemolymph in hemocoel circulates nurtrients out from gut and gases in from body wall.
10Describe Nematode excretion:
No cilia or flagella, no flame cells, no protonephridia. Nitrogenous waste diffuses across body wall.
11Describe Nematode osmoregulation:
Achieved by unique gland cells and/or canal cells that empty via an excretory pore.
12Describe Nematode reproduction...
Gonochoristic, Males are smaller than females and have a curved posterior, amoeboid sperm, fertilization is internal, eggs stored in uterus.
13Nematode nervous system...
Simple brain with a nerve ring around the pharynx, 4 nerve cords, dorsal ventral and lateral on each side. Dorsal and ventral control the body wall muscles.
14What are the lab mouse of nematodes? Describe them...
Caenorhabditis elegans, first animal to have complete genome sequenced.
15What is the common parasite of human digestive tract?
Ascaris lumbricoides
16What is the scientific name of pinworms?
Enterobius vermicularis
17What can be caught from undercooked pork?
Trichnella spiralis
18What is the scientific name of dog heart worms?
Dirofilaria immits