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Check your knowledge! Take our fun quiz for the intermediate Marine Life Section of the Animals Chapter of our textbook! Follow the instructions and then click on the "Check it!" button for each question.

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Intermediate Activities: Marine Life fancy hrule

1. How do most fish stay afloat in the water? (Check the correct answer.)
With gills.
With an internal swim-bladder like a small gas filled balloon.
With inflatable water wings.
By flapping their tails.
Check it!

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2. Water is about 800 time thicker or denser than air. Is water more difficult to move through than air? (Check yes or no.)
Yes
No
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3. What is the resistance a fish feels when it moves through the water? (Check the correct answer.)
The fish feels the waves.
The fish feels tired.
The fish feels drag.
The fish feels streamlined.
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4. What helps fish to move through the water fast? (Check the correct answer.)
Giant waves
Motors
Streamlined bodies
Their eyes
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5. What do fish have that help them swim? (Check all correct answers.)
Streamlined bodies.
Fins that can be tucked away in special grooves when moving quickly.
A tail that moves from side to side.
Slimy skin which helps to reduce drag.
Check it!

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6. Choose the word that completes this sentence. Fish move through the water by waving their ______ back and forth.
Gills
Flippers
Heads
Fins
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7. When most fish swim they undulate (bend) their bodies in what kind of shape? (Check the correct answer.)
In an S-shaped wave.
In an O-shaped wave.
In a straight line.
In a side to side wave.
Check it!

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8. What internal part of the body of a fish is necessary to give the fish the strength to swim for both long lengths of time and short bursts of speed. (Check the correct answer.)
The gills
The dorsal fins
The muscles
The caudal fins
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9. What do the different colors of muscles in fish show? (Check the correct answer.)
How old the fish is.
What food the fish eats.
The fish is male or female.
What the muscle is used for.
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10. Dolphins and whales are mammals. Mammals are different from fish in which of these ways?
They are warm-blooded.
Their babies are born live rather than in eggs.
They nurse their young.
They need to breathe air through a nose or blowhole.
Check it!

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11. How does the tail of a dolphin move? (Check the correct answer.)
Around and around like a corkscrew.
Up and down.
Side to side.
Like an S-shaped wave.
Check it!

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12. What is the name of the nose on dolphins and whales called? (Check the correct answer.)
A gill
A proboscis
A snout
A blowhole
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13. Where is the nose or blowhole located on the dolphin and whale? (Check the correct answer.)
Near the gills.
In between the eyes.
On top of the head.
Check it!

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14. Do "flying fish" really fly? (Check yes or no.)
No, they do not actually fly. Instead, they glide across the surface of the water.
Yes, they fly through the air and flap their wings.
Check it!

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15. How doe a sea turtles swim through the water? (Check the correct answer.)
By waving their tails.
Using an S-shaped waving motion.
Using their flippers.
Check it!

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16. Answer these questions about how seals swim with true or false.

Seals swim by waving their strong front flippers.
True
False

Seals swim by using a vertical movement of their back flippers and tail to propel themselves through the water.
True
False
Check it!

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17. Answer these true false questions about how jellyfish swim.

Jellyfish swim by filling their umbrella section with water and then pushing the water out, sending the jellyfish in the opposite direction.
True
False

Jellyfish swim by clapping their tentacles together.
True
False
Check it!
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18. What marine animals use jet propulsion to move around? (Check all correct answers.)
Whales
Squids
Jellyfish
Manta rays
Check it!

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