The Four The Four Species Species Where in Where in the World? the World? Structure Structure & & Function Function Human Human Connectio Connectio ns ns Name that Name that Scientist Scientist 200 200 200 200 200 400 400 400 400 400 600 600 600 600 600 800 800 800 800 800 1000 1000 1000 1000 1000 International HSC Double International HSC Double Jeopardy! Jeopardy!
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The Four Species Where in the World? Structure & Function Human Connections Name that Scientist 200 400 600 800 1000 International HSC Double Jeopardy!
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The Four The Four SpeciesSpecies
Where in Where in the World?the World?
Structure Structure & Function& Function
Human Human ConnectionConnection
ss
Name that Name that ScientistScientist
200 200 200 200 200
400 400 400 400 400
600 600 600 600 600
800 800 800 800 800
1000 1000 1000 1000 1000
International HSC Double International HSC Double Jeopardy!Jeopardy!
the most abundant and well-protected of the four HSC species
Answer:
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What is Limulus polyphemus?
females of this species feature 3 long spines on
each side of the opisthosoma
Answer:
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What is Tachypleus tridentatus?
Question:
produces the largest eggs of the four
species
Answer:
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What is Tachypleus
gigas?
practices polyandrous (multiple males fertilizing the eggs of one female) mating
strategies
Answer:
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What isLimulus
polyphemus?
species associated with tetradotoxin poisoning from consumption by humans?
Answer:
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What is Carcinoscorpius rotundicauda?
a museum shaped like and dedicated to the horseshoe crab
can be found here
Answer:
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What is Japan?
bounties were once offered in this U.S. coastal area for turning in the tails of dead
HSCs
Answer:
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What is Cape Cod?
HSCs are used for bait in the octopus
fishery here
Answer:
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What is Mexico (or the
Yucatan)?
Question:
HSCs are celebrated in these countries during
Chinese Valentine’s day events
Answer:
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What is Hong Kong, Taiwan
and/or China?
Buddhist “Blessings of horseshoe crab” events
have been held here each of the last 6 years
Answer:
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What is Delaware Bay (USA)?
these structures enable the HSC to detect UV light for adjusting its sensitivity to
light at night
Answer:
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What are the median eyes(or simple eyes)?
female HSCs use these versatile appendages to
mold their eggs into clusters
Answer:
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What are the pusher legs
(or feet)?
photosensors in this structure assist the HSC
in maintaining its day/night 24-hour clock
Answer:
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What is the telson?
chitinous spines inside this organ help the HSC
break down its food
Answer:
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What is the crop-gizzard
(or proventriculus)?
name for special sensory organ located at the base of the HSC pusher leg above its
gills
Answer:
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What is the flabellum?
a few years ago, Asian HSCs were being imported to the
United States for use as ____.
Answer:
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What isbait for eel & conch (whelk) fisheries?
Question:Question:
over 100 years ago on Delaware Bay, HSC eggs were shoveled up by the wagonload
for use as
Answer:
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What islivestock feed (or feed for hogs & chickens)?
Japanese mythology holds that the spirit of these people are embodied in the shells of
HSCs
Answer:
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What are Samurai warriors?
in the 1970's, University of Delaware researchers spun chitin
filaments from HSCs for use in ____.
Answer:
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What areburn wraps & surgical
sutures?
An Indian researcher recently discovered potential use of the
fluid inside the HSC egg for ____.
Answer:
What are organ transplant or tissue regeneration
therapies?
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noted for his ground-breaking, Nobel Prize winning research on horseshoe crab vision
Answer:
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Who isDr. Keffer Hartline?
renowned world authority (after 60+ years of dedicated study) on Limulus polyphemus
Answer:
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Who is Dr. Carl Shuster?
two researchers recognized for their extraordinary