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Animal Relatives Trivia Quiz

Organisms are classified by the amount of DNA they have in common with others. The more similar their DNA, the more closely related they are, and the more closely together they are classified. Which animals are more closely related to each other?

A multiple-choice quiz by Cher40. Estimated time: 5 mins.

Author
Cher40

Time
5 mins

Type
Multiple Choice

Quiz #
268,715

Updated
Sep 13 23

# Qns
10

Difficulty
Difficult

Avg Score
4 / 10

Plays
1359

Last 3 plays: Guest 142 (1/10), Guest 172 (2/10), Guest 67 (0/10).

One at a Time - Single Page - Timed Game

Question 1 of 10

1. A millipede is more closely related to what animal? Hint

Snake

Grasshopper

Earthworm

Leech

NEXT>

Question 2 of 10

2. A jellyfish is more closely related to what animal? Hint

Sponge

Coral

Starfish

Seahorse

NEXT>

Question 3 of 10

3. A tapeworm is more closely related to what organism? Hint

Fluke

Leech

Earthworm

Bacteria

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Question 4 of 10

4. A lobster is more closely related to what animal? Hint

Squid

Snail

Clam

Mosquito

NEXT>

Question 5 of 10

5. A sea urchin is more closely related to what animal? Hint

Starfish

Sponge

Coral

Platypus

NEXT>

Question 6 of 10

6. A barnacle is more closely related to what organism? Hint

Clam

Crab

Snail

Sea urchin

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Question 7 of 10

7. A scorpion is more closely related to what animal? Hint

Lobster

Spider

Centipede

Ant

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Question 8 of 10

8. Seahorses are more closely related to what animal? Hint

Starfish

Scallop

Lobster

Zebra

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Question 9 of 10

9. Salmon are most closely related to what animal? Hint

Shark

Seahorse

Salamander

Dolphin

NEXT>

Question 10 of 10

10. Turtles are most closely related to which animals? Hint

Snails

Frogs

Snakes

Salamanders

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Quiz Answer Key and Fun Facts

1. A millipede is more closely related to what animal?

Answer: Grasshopper

Millipedes and grasshoppers are both arthropods, having hard exoskeletons and jointed appendages. Earthworms and leeches, both segmented worms, are classified in Phylum Annelida. Snakes, having backbones, are chordates, like us.

2. A jellyfish is more closely related to what animal?

Answer: Coral

Jellyfish and corals are both cnidarians or coelenterates, while sponges are in Phylum Porifera, and seahorses are chordates with backbones like us.

3. A tapeworm is more closely related to what organism?

Answer: Fluke

Tapeworms and flukes are both flatworms in Phylum Platyhelminthes. Earthworms and leeches are both segmented worms, Phylum Annelida. Unlike the other organisms here, bacteria are not classified as animals.

4. A lobster is more closely related to what animal?

Answer: Mosquito

Lobsters and mosquitos are both arthropods, having jointed appendages and hard exoskeletons made of the substance chitin. Squid, clams and snails are all mollusks, which are soft-bodied organisms with a mantle that secretes a shell.

5. A sea urchin is more closely related to what animal?

Answer: Starfish

Sea urchins and starfish both have a body plan based on the number five and are classified in Phylum Echinodermata. Corals and sponges are in Phylum Cnidaria (Coelenterata) and Phylum Porifera, respectively, while platypuses are chordates like us.

6. A barnacle is more closely related to what organism?

Answer: Crab

A crab and a barnacle are both animals classified as arthropods, with exoskeletons composed of the hard substance chitin. Clams and snails are mollusks, soft-bodied animals secreting calcium carbonate shells. Sea urchins are classified in Phylum Echinodermata.

7. A scorpion is more closely related to what animal?

Answer: Spider

While all animals here are arthropods, having jointed appendages and exosketons made of chitin, scorpions and spiders are both arachnids. Lobsters are crustaceans, centipedes are mirapods or chilopods, and ants are insects.

8. Seahorses are more closely related to what animal?

Answer: Zebra

Seahorses and zebras both have backbones and are classified in Phylum Chordata, like us. Starfish, lobsters, and scallops are all invertebrates, lacking backbones.

9. Salmon are most closely related to what animal?

Answer: Seahorse

All animals here are called chordates, but salmon and seahorses are both bony fishes, Class Osteichthyes. Sharks are cartilaginous fishes, salamanders are amphibians, and dolphins are mammals.

10. Turtles are most closely related to which animals?

Answer: Snakes

Turtles and snakes are both reptiles, while frogs and salamanders are both amphibians. Snails are mollusks.

Source: Author Cher40

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