GENERAL HISTOLOGY

OESOPHAGUS STOMACH

ECHINODERMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Sea stars are carnivores and are among the most important predators in many marine ecosystems.
A
True
B
False
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Sea stars are carnivores and are among the most important predators in many marine ecosystems. Q. In some echinoderms, respiration and waste removal are performed by skin gills.

Detailed explanation-2: -Sea stars are mostly carnivorous and prey on mollusks-including clams, mussels and oysters-which they pry open with their suction-cupped feet.

Detailed explanation-3: -The voracious carnivores are seastars, better known as starfish, and a new study by a national research group says they tie with polar bears as the top predators of the Arctic marine ecosystem.

Detailed explanation-4: -Starfish are carnivores (meat-eaters). They eat clams, oysters, coral, fish, and other animals. They push their stomach out through their mouth (located on the underside of the sea star) and digest the prey.

Detailed explanation-5: -Predators (animals that eat them) include crabs, lobsters, bottom dwelling fish, other sea stars, and seagulls. Sometimes a predator will grab onto a sea star’s arm and the sea star can detach or let go of it to get away. But don’t worry, they can regrow their arms!

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