This document contains 100 trivia questions and answers about echinoderms organized into categories - How Many, What's That, Spiky, Nuts & Bolts. The questions cover topics like the names of body parts of sea stars, sea urchins, and sea cucumbers. They also ask about the number of echinoderm species, what eats sea cucumbers, and the types of symmetry and systems that echinoderms have.

1. 100 100 100 100
200
300
400
500
How Many
Jeopardy What’s That Spiky
Nut’s &
Bolts
200
300
400
500
200
300
400
500
200
300
400
500

2. How Many
100
What Echinoderms
are eaten by
humans?
Sea urchins
and
cucumbers

3. How Many
200
What is the name of
the body of a sea
urchin?
Test

4. How Many
300
What body part on a
sea star produces
the tube feet by
pumping water into
them?
Ampullae

5. How Many
400
About how many
species of
Echinoderms are
there?
6,500 species

6. How Many
500
What is the name
of the body part
that allows water
into a sea star for
the water vascular
system?
Madreporite

7. What’s That
100
The phylum
Echinodermata
translates into
what?
Spiny Skin
Animals

8. What’s That
200
What species of
marine mammals
is able to prey on
sea cucumbers
despite their
spines?
Sea Otters

9. What’s That
300
A Pearl Fish is a
small, slender fish
that hides within
the anus of a
_____________.
It comes out to
feed but always
returns to its
host?
Sea Cucumber

10. What’s That
400
Keyhole urchins
have five slits that
allow water to pass
through, so they
don’t get washed
out of the sand by
wave, what are
they called?
Locules

11. What’s That
500
What do we call
the five sets of
double rows that the
flat tube feet
emerge from on
sand dollars?
Petaloids

12. Spiky
100
What Echinoderm has a
stalk that attaches it to
the sea floor?
Sea Lillie

13. Spiky
200
Echinoderms have
what type of
symmetry when they
are a larvae?
Bilateral

14. Spiky
300
What is the
name of a
sea star’s
circulatory
system?
Water Vascular
System

15. Spiky
400
The ampullae
secreate what on
a sea star?
Tube Feet

16. Spiky
500
Sea stars and sea
urchins belong to what
classes?
Asteroidea = Sea
Stars
Echinoidea = Sea
Urchins

17. Nuts & Bolts
100
What kind of
digestive
system do
Echinoderms
have?
Complete

18. Nuts & Bolts
200
What kind of
circulatory system
do Echinoderms
have?
None, have a water
vascular system
instead.

19. Nuts & Bolts
300
What Echinoderms
graze on algae? Sea Urchins

20. Nuts & Bolts
400
Explain how sea
cucumbers eat?
Suck up sand and
digest any organic
matter and then
defecate clumps of
sand.

21. Nuts & Bolts
500
What is the name of
the echinoderm that
has reduced test and
enlarged locules to
prevent it from getting
washed away in
turbulent water??
Mexican Sand Dollar