Worms and Parasites. Parasites Worms How does a person get worms?
Shipworms Shipworms are not worms. Think you know what they are?
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Transcript of Shipworms Shipworms are not worms. Think you know what they are?
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Shipworms
Shipworms are not worms.
Think you know what they are?
![Page 3: Shipworms Shipworms are not worms. Think you know what they are?](https://reader036.fdocuments.us/reader036/viewer/2022070305/551593be550346486b8b59c1/html5/thumbnails/3.jpg)
Shipworms
Shipworms are actually clams.
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Shipworms
Shipworms get their name from
their long, narrow,
cylindrical bodies.
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Shipworms
A closer look at the creature reveals a shell at its front.
This shell has two halves with a gap in between, like a
clamshell.
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ShipwormsThese termites of the
sea have an organ full of bacteria that
digest wood.They eat sawdust which they produce
as they scrape through the wood.
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Shipworms
The bacteria take nitrogen from the
water and convert it to protein for the worm.
The bacteria, in return, get nutrients
form their host.
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Shipworms
Shipworms begin life in the plankton.
When it finds a piece of wood, it uses its shell to
eat its way into the wood.
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Shipworms
As the shipworm grows, so does
the burrow. Some worms can be as long as six feet.
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Shipworms
Their breathing siphons remain at the surface of the
wood as they grow to obtain their needed
oxygen.
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Shipworms
Once a shipworm claims a home, its
stuck there for life.
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Shipworms
Even when removed intact
and uninjured, the shipworms are
unable to dig new burrows!
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Shipworms
Shipworms play an important role in
reducing the amount of
driftwood in the world’s oceans.