What type of symmetry does the starfish have?

Answer 1

they have radially symmetrical

ANS2:They appear to have radial symmetry but closer inspection will show that the madreporite (sieve plate) is not centered and the animal's behavior demonstrates that it has a preference in its axis of motion i.e., it has a "head end" even though it has no head.

The bipinnaria larva of the starfish is bilaterally symmetrical and only takes on the apparent radial symmetry as an adult. Because of the off-center location of the madreporite, one could argue that the adult is bilaterally symmetrical but, junior high and high school Biology classes don't encourage you to disagree so, you should probably answer "radial" if you are answering a multiple choice question.

ANS3:Radial because it has more than one line of symmetry through the center

Further Comment: I question the logic for answer 3. More than one line of symmetry through the central does not imply radial symmetry. I vote for ans1 as an approximation, and ans2 as a more detailed answer.

Answer 2

Starfish are radially symmetrical animals. Radial symmetry is a type of symmetry that a central axis. Radial symmetry is also found in flowering plants.

Answer 3

a starfish has a rotational symmetry because it rotates back to itself 90 degrees which is 1/4 of a turn.

Answer 4

Radial symmetry because you can cut it in any direction and it will have mirrored halves

Answer 5

radial because you can split up its body any way and it will be the same

Answer 6

The star fish like all other objects with more than one line of symmetry has what is called radial symmetry

Answer 7

turn symmetry

Answer 8

radial symmetry.

Answer 9

radial