Mysterious Oceans

The tube worm is a giant sea creature , What are the physical characteristics of the tube worm?

• The tube worm has a short, solid body and no tentacles.
• The tube worm is a small freshwater creature with a hard shell.
• The tube worm has a round body and scales for protection.
• The tube worm has a long, segmented body,with no mouth , eyes or stomach .It has a protective tube, and red feathery tentacles.

The ocean floor is varied consisting of -----

• mountains, valleys, plains, and trenches
• mountains on land
• forests
• deserts

What is the meaning of the vocabulary dormant as used in deep diving ?

• Inactive or not functioning in deep diving.
• Active and functioning in deep diving.
• Temporarily submerged in water.
• Fully operational during dives.

Do any of them- sea creatures - Cache food the way land animals do? Define cache as used in this context,-

• No sea creatures cache food at all.
• Yes, some sea creatures cache food, but it is less common than in land animals.
• All sea creatures cache food like land animals.
• Only fish cache food, not other sea creatures.

What is the synonym for hibernate ?

• nap
• snooze
• hibernate
• sleep

Appréciez-vous la leçon vidéo ?

• Oui

• Non

Deep sea starfish grow larger and more aggressive than their shallow water relatives. This is an example of adaptation to a frigid and dark environment,- Define adaptation.

• Adaptation refers to the physical changes in an organism's color only.
• Adaptation is the process by which a species becomes better suited to its environment.
• Adaptation is the process of becoming extinct in a changing environment.
• Adaptation is the ability to survive without any changes to the environment.

Deep sea starfish are preditors that activiely forage for food, What is another word for forage?

• gather
• collect
• search
• hunt

Heated Habitats - scientists dicovered that the ocean floor has vents and cracks as does the earths surface, Was this a surprising discovery?

• It was completely unexpected and baffling.
• Only partially surprising due to previous research.
• No, it was not a surprising discovery.
• Yes, it was a surprising discovery.

The Pompeli warm has a fleece of bacteria on its back that , as far as scientest determine , insulates it from heat, Define insulate

• To insulate means to allow heat to pass through easily.
• To insulate means to enhance heat transfer.
• To insulate means to expose to extreme temperatures.
• To insulate means to protect from heat or cold by providing a barrier.