Which of the following is a living fossil?
Q. Which of the following is a living fossil?
A. Holothuria (Sea cucmber)
B. Antedon (Feather star)
C. Ophiothrix (Brittle star)
D. Echinus (Sea urchin)
Answer: Antedon (Feather star)
A. Holothuria (Sea cucmber)
B. Antedon (Feather star)
C. Ophiothrix (Brittle star)
D. Echinus (Sea urchin)
Answer: Antedon (Feather star)