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segmented worms

Terms

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annelid means...
"little rings"
_____ shaped bodies
tube
setea are...
bristle like structures
how do worms use setea?
It holds onto the soil with it's setea to move
_____ symmetry
bilateral
body cavity...
holds the organs
two body openings...
mouth and anus
anterior... posterior...
front end back end
more than ___ body segments
100
move using...
setea and muscles
soil enters the ____, then moves to the ____
mouth, crop
The _____ grinds the soil
gizzard
The _____ is where organic matter is broken down and _____ are absorbed
intestine, nutrients
Wastes/castings leave through ___, piling up at the opening of the ______
anus, burrow
they have a _____ circulatory system
closed
What pumps the blood?
Aortic arches. They are like hearts
they have no ___ or ___
gills or lungs
Do they have a brain?
yes
True or false. they are not hermeprodites
false
What are polchaetes?
marine worms
What does polychaete mean?
many bristles
What do they feed on?
blood of other animals
What is anesthetic?
numbs skin so you don't feel it's bite
leech _____ helps keep blood from clotting
saliva
saliva is being studied to treat...
heart of circulatory deseases, strokes, arthritis or glaucoma
What do they do to the soil?
aerate it
They speed up the return of _____ to the soil for plant use
nutrients
some are food for...
fish, invertibrates and mammals
there are not many fossil records because of their...
soft bodies
There are similarities between...
segmented worms and mollusks

Deck Info

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