EVERYDAY SCIENCE

SCIENCE

ZOOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Animals whose body parts are arranged in a circle around a center point have
A
radial symmetry
B
spherical symmetry
C
asymmetry
D
bilateral symmetry
Explanation: 

Detailed explanation-1: -Radial symmetry is found in the cnidarians (including jellyfish, sea anemones, and coral) and echinoderms (such as sea urchins, brittle stars, and sea stars).

Detailed explanation-2: -The most common animal body plan is radial symmetry. Animals with radial symmetry have body parts organized around a central point (notice on the flower where the dotted lines come together), like the spokes in a bicycle wheel.

Detailed explanation-3: -For example, pies, snowflakes, and starfish are radially symmetric because they have many different lines of symmetry (dividing them into matching halves) and the lines cross one another at the center.

Detailed explanation-4: -Radial symmetry is the arrangement of body parts around a central axis, as is seen in a drinking glass or pie. It results in animals having top and bottom surfaces but no left and right sides, or front or back.

Detailed explanation-5: -Radially symmetrical animals have a top and bottom but don’t have a front or back or distinctive left and right sides. They also have a side with a mouth, called the oral side, and a side without the mouth called the aboral side. These animals typically can move in all directions.

There is 1 question to complete.