Question

Which of the following is the best mechanism in star fish, that contributes to the survival of the race?

• A. The ability to withstand starvation for several months.
• B. Production of large number of eggs.
• C. Free swimming larvae, which bring about dispersal.
• D. All of the above.

Answer 1

The correct option is D All of the above.

Sea stars or starfish belongs to the group of echinoderms. They do not have any gills or fins. They have specialized adaptations that help them to stay alive. Starfish have two stomachs which allow them to eat large prey. This also helps to withstand starvation for several months. The body of starfish is covered with thorns and spines which protect them from predators. Further, these have the ability to regenerate the damaged and worn out parts of their body. Starfish survives for a long time nearly up to 35 years. The females tend to produce millions of egg at once. Since millions of eggs and sperms are released into the water and the embryo and larvae live as part of the plankton.

Thus, the correct answer is option D.