Deep Sea Organisms

During which time do some deep-sea animals migrate upwards to shallower waters to feed?

• Daytime

• Dusk

• Midnight

• Night

What is a characteristic of deep-sea animals' muscles due to the extreme environment?

• Strong and rigid

• Highly flexible

• Weak and soft with low protein levels

• Highly developed

Tags

NGSS.MS-LS4-4

What is a notable difference between the knowledge of the deep sea and the surface of the moon?

• More known about the deep sea

• More known about the moon

• Equal knowledge levels

• Lack of knowledge about both

Which activity poses a threat to deep-sea animals through bottom trawling?

• Commercial fishing

• Research expeditions

• Tourism

• Conservation efforts

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

What adaptation do some deep sea animals have to capture very low levels of light?

• Small eyes

• No eyes

• Large eyes

• Bioluminescent skin

What is the starting depth of the deep ocean where sunlight fades?

• 50m

• 200m

• 1000m

• 500m

How do deep sea animals use bioluminescence for camouflage?

• Creating loud noises to distract predators

• Producing bright flashes of light

• Counterillumination - matching the background light

• Changing colors rapidly

What is one way animals of the deep ocean withstand the pressure?

• They lack gas-filled spaces such as lungs

• Strong muscles with high protein levels

• Largely made of air

• Lightweight bone structures

What is a common feature of deep-sea animals' bone structures?

• Numerous and dense

• Fewer bone structures

• Hollow and lightweight

• Thick and heavy

What is bioluminescence?

• Light produced by a chemical reaction or bacteria

• Sound produced by deep sea animals

• Heat generated by deep sea creatures

• Movement in the water column