53 Questions
What is the name of the lining found on the shells of clams?
Mother-of-pearls
How do crustaceans ensure their new shell is large enough when they molt?
Stretching themselves by taking in large amounts of air
What is the external structure that algae form in coral polyps made of?
Exoskeleton
Which marine mammal has a layer of blubber instead of fur?
Whales
What distinguishes eared seals from true seals?
Ability to walk on land
What natural phenomenon causes Tsunamis?
Earthquake
Which statement best describes the Blue Grotto?
It has relaxing and refreshing qualities due to water forces.
What can be produced from chemicals found in the sea according to the text?
Antibiotics
What is the main effect of Tsunamis according to the text?
Destroying everything in their path
Which underwater feature does the text NOT mention in relation to the sea?
Deserts
What is the primary source of oxygen production in the ocean?
Phytoplankton
How do waves impact coastal features according to the text?
Create cliffs, arches, and caves
What do Plankton refer to in the context of this text?
Organism carried by tides and currents
What is the main characteristic of crustaceans?
Segmented bodies with jointed legs and a hard outer skeleton
Where do shrimps most often live and scavenge for food?
On the bottom of the continental shelf
What is a defining characteristic of whales?
Warm-blooded and have a layer of blubber instead of fur
What is the primary food source for walruses?
Fish, mollusks, and crustaceans
How do crustaceans prepare for the hardening of their new shell after molting?
By taking in large amounts of air to stretch themselves
Which marine animal has a layer of blubber under its skin?
Walruses
What type of animals are pinnipeds?
Mammals that live in the sea but go on land to give birth
What is an essential feature of coral reefs?
Miniature invertebrates called coral polyps creating hard outer coverings
What distinguishes eared seals from true seals?
Ability to walk on land using flippers
How do whales swim?
By moving their tails up and down
What process describes the transformation of liquid water into water vapor?
Evaporation
What is the scientific abbreviation for water?
H2O
What percentage of Earth's water comes from the ocean?
Approximately 97%
What is the primary role of the ocean in relation to the land?
Affects the climate
What is the primary function of barnacles' feathery legs?
To collect algae for food
Which type of mollusk has two matching shells joined by hinges?
Bivalves
How are pearls formed in mollusks?
Through secretion of nacre around an irritant
What distinguishes shellfish mollusks used for food?
They have soft bodies and require shells for protection
Which factor primarily affects the height of tides along coastlines?
The position of the moon and sun
Which species is known for producing pearls?
Oysters
The lining on the shells of clams is called ______
Mother-of-pearls
When a crustacean molts, its shell splits along a point of ______
weakness
Shrimps most often live on the bottom of the continental ______
shelf
Crabs have flattened, elongated bodies with ______ legs and two pincers
eight
Coral reefs are formed by coral ______
polyps
Whales breathe with ______
lungs
Walruses live near the North Pole in the ______ Ocean
Arctic
The largest pinniped is the elephant ______
seal
Eared seals can use its flippers to ______ up (walk on land)
sit
Male elephant seals can weigh up to 16k lb. and ______ ft.
16
Pinnipeds are also called ______ animals
wing-footed
Walruses have thick ______ skin
wrinkly
Male Walruses can weigh up to over 2k ______
lb
Whales breathe with ______
lungs
Eared seals can use its flippers to sit up (walk on ______)
land
The largest pinniped is the elephant ______
seal
Some eared seals are fur seals, sea lions, and elephant ______
seals
Crabs have flattened, elongated bodies with eight ______ and two pincers
legs
The lining on the shells of clams is called ______
Mother-of-pearls
Coral reefs are formed by coral ______
polyps
Test your knowledge about underwater landscapes and phenomena such as caves, mountains, and volcanoes hidden beneath the surface of the sea. Learn about the Blue Grotto, a cave filled with blue light, and the impact of the ocean on chemical reactions and marine life.
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