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Ch-15 Nematoda
Biolab- Roundworms
| Question | Answer |
|---|---|
| Round worms have a body cavity known as a | pseudocoelom |
| Nematodes have a complete digestive system:... Food taken in through the ______ passes down a relatively simple ______ and waste is egested from an _____. | tubular gut has two openings. Through the mouth, down an intestine and out of the anus. |
| Nematodes are dioecious with ... So sexually reproduction is done by _____ _______. | separate male and female individuals. internal fertilization |
| Body wall is composed of epiderms covered with a thick, smooth ... Near the dorsal and ventral body wall you can find... | cuticle and longitudinal muscles. doral and ventral nerve cords. |
| The pseudocoelom rather than being embedded in the solid body kindof | floats. |
| Along the lateral line of body walls you can find _____ _____. | excretory canals. |
| Much of the tissue in a pseudocoelom are components of the _____ _____. | reproductive tract. |
| In females a ross slid shows a large solid cicular organs known as ____, in these you can see the _____. And numerous smaller solid circular structure sin the body cavity are loops of ______. And the two small hollow structures are sections through the __ | uteri, eggs and ovaries; oviducts. |
| Movement in nematodes is by contraction of -------- ------ within the body wall. Alternating contractions gives the characteristic uncoordinated thrashing movements typical of round worms. | longitudinal musculature |
| Round worm Trichinells was common in pork and causes the disease .... | trichinosis. |
Created by:
kccroy
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