Starfish Adaptations Quiz

What adaptation allows starfish to open the shells of mollusks?

• Strong suction cups

• Sharp teeth

• Tube feet

• Chemical digestion

How do starfish adapt to varying salinity levels in their environment?

• By changing their body shape

• By adjusting the permeability of their skin

• By regulating the salt concentration in their body fluids

• By moving to areas with preferred salinity levels

What unique feature allows starfish to survive predation?

• Camouflage

• Regeneration of lost limbs

• Speed

• Poisonous spines

How do starfish feed on their prey?

• By swallowing them whole

• By injecting venom

• By extending their stomachs out of their mouth

• By using their arms to tear apart prey

What adaptation helps starfish to blend in with their surroundings?

• Bioluminescence

• Mimicry

• Camouflage

• Transparency

How do starfish sense their environment?

• Through eyes at the tips of their arms

• By detecting chemical changes in the water

• Through vibrations

• A and B

What allows starfish to move across the ocean floor?

• Fins

• Jet propulsion

• Tube feet

• Swimming

How do starfish adapt to high pressures in deep-sea environments?

• By increasing their body mass

• By reducing their metabolic rate

• By having flexible skeletons

• By producing high internal pressures

How do starfish adapt to low oxygen environments?

• By slowing down their metabolism

• By using hemoglobin to carry oxygen

• By increasing their surface area for gas exchange

• By holding their breath