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Starfish and Sand Dollars Trivia Quiz

Here's a little quiz on the Phylum Echinodermata for you guys out there. Hope you learn something new about these guys! Any comments, let me know!

A multiple-choice quiz by randyaimee. Estimated time: 3 mins.

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Echinoderms (Starfish, Sea Urchins, Etc.)

Author
randyaimee

Time
3 mins

Type
Multiple Choice

Quiz #
26,295

Updated
Dec 03 21

# Qns
10

Difficulty
Average

Avg Score
6 / 10

Plays
1550

One at a Time - Single Page - Timed Game

Question 1 of 10

1. What does the word "echinoderm" mean? Hint

no skin

smooth skin

spiny skin

grooved skin

NEXT>

Question 2 of 10

2. What is the name for the dead 'shell' of a sand dollar when you find it washed up on the beach? Hint

skeleton

shell

test

bones

NEXT>

Question 3 of 10

3. Is the starfish a true fish?

Yes

NEXT>

Question 4 of 10

4. If a starfish loses one or more of its arms, what can happen to the center piece? Hint

It can regenerate the arm(s)

Turn into a barnacle

Turn into an oyster

Come back together

NEXT>

Question 5 of 10

5. About how many species are in the phylum Echinodermata? Hint

about 5000

about 2000

about 6000

about 3000

NEXT>

Question 6 of 10

6. Where can you find most of the animals in the phylum Echinodermata? Hint

Sea

Land

Fresh water

All of the above

NEXT>

Question 7 of 10

7. Which class contains the brittle stars and the basket stars? Hint

Asteroidea

Holothuroidea

Echinoidea

Ophiuroidea

NEXT>

Question 8 of 10

8. The brittle star does not have a brain.

True

False

NEXT>

Question 9 of 10

9. Which animal is not in the phylum Echinodermata? Hint

starfish

basketstar

sea urchin

sea anemone

NEXT>

Question 10 of 10

10. Most of the creatures in the phylum Echinodermata have a _____ part radial symmetry. Hint

six

five

ten

three

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Quiz Answer Key and Fun Facts

1. What does the word "echinoderm" mean?

Answer: spiny skin

An interesting group including starfish, sand dollars, and sea cucumbers.

2. What is the name for the dead 'shell' of a sand dollar when you find it washed up on the beach?

Answer: test

A beach comber's treasure.

3. Is the starfish a true fish?

Answer: No

Does not fit into the fish classification system, is an invertebrate.

4. If a starfish loses one or more of its arms, what can happen to the center piece?

Answer: It can regenerate the arm(s)

Starfish can regenerate missing parts. An injury such as this may leave the animal susceptible to infection so regeneration can't be guaranteed.

5. About how many species are in the phylum Echinodermata?

Answer: about 6000

6. Where can you find most of the animals in the phylum Echinodermata?

Answer: Sea

Found only at sea and cannot be found in freshwater or land.

7. Which class contains the brittle stars and the basket stars?

Answer: Ophiuroidea

8. The brittle star does not have a brain.

Answer: True

They have a ring of nerve cells that helps them transport information throughout the body.

9. Which animal is not in the phylum Echinodermata?

Answer: sea anemone

The sea anemone is in the phylum with Jellyfish (Cnidaria).

10. Most of the creatures in the phylum Echinodermata have a _____ part radial symmetry.

Answer: five

Source: Author randyaimee

This quiz was reviewed by FunTrivia editor crisw before going online.
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