The Twilight Zone

Which of the following is a secondary consumer in the twilight zone food web?

• Vampire squid

• Lanternfish

• Marine snow

• Giant tube worms

Tags

NGSS.MS-LS2-3

How is energy primarily transferred in the twilight zone?

• Through chemosynthesis

• Via photosynthesis

• By predation and consumption

• Through thermal vents

Which of the following species is considered a top predator in the twilight zone?

• Krill

• Anglerfish

• Copepods

• Diatoms

What is the significance of marine snow (detritus) in the twilight zone food web?

• It provides light for photosynthesis

• It is a primary producer

• It is a source of nutrients for many organisms

• It is a decomposer

Tags

NGSS.MS-LS2-3

What is a unique feature of the twilight zone that affects the food web?

• The abundance of sunlight

• The high pressure and low temperature

• The presence of coral reefs

• The lack of any life forms

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which of the following interactions is common between species in the twilight zone?

• Mutualism

• Commensalism

• Predation

• All of the above

Tags

NGSS.MS-LS2-2

How do twilight zone consumers adapt to the scarcity of food in their environment?

• By developing bioluminescence to attract prey

• By having large eyes to see in the dark

• By slowing their metabolism to conserve energy

• All of the above

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What is diel vertical migration?

• Daily movement of organisms in the ocean from the depths to the surface and back again
• Weekly migration of organisms within the same depth of the ocean
• Movement of organisms from the surface to the ocean floor
• Yearly migration of organisms from one ocean to another

What is counterillumination?

• A form of defense used by marine animals to release ink and escape from predators
• A form of camouflage used by some marine animals to match the light coming from above, making them less visible from predators below.
• A type of dance performed by marine animals to confuse predators
• A method of communication used by marine animals to attract mates

What adaptation is seen in the skin of this fish?

• counterillumination

• countershading

• photophores

• tubular eyes

Tags

NGSS.MS-LS3-1