Question

In asterias,mouth is guarded by peristome.it's true or false​

Answer 1

Answer:

Asterias has a radially symmetrical and pentamerous body. The body consists of a central, pentagonal central disc from which radiate out five elongated, tapering, symmetrical spaced projections, the rays or arms. The size varies from 10-20 cm in diameter though some forms may be much smaller or longer.