How do the body plans of radially and bilaterally symmetrical animals differ?

Answer 1

Bilateral symmetry means something has symmetry across one plane (known as the sagittal plane, and directly down the centre of their body), which means one side of their body approximately mirrors the other side. This is evident in all vertebrates (birds, mammals, fish, reptiles and amphibians) and arthropods (crustaceans, insects, arachnids, etc.).

Radial symmetry is symmetry that occurs in a radial, or circular fashion, repeating around the centre of the body, e.g. jellyfish. in radial symmetry, the organism can be divided into similar halveplaned inviting it at any angle along a central axis.

.

Answer 2

Bilateral Symmetry-is when an organism can be divided into right and left halves, identical but mirror images, by a single vertical plane. The external form of humans displays this symmetry, though not the internal organs.

Radial Symmetry-is when an organism is equally spaced around a central point, like spokes on a bicycle wheel.

Answer 3

Radial symmetry - e.g. sea urchins, sand dollars, star fish. They are symmetrical along several (usually 5) axes.

Bilateral symmetry - e.g. squids, fish, whales. Have an oral/aboral (head/tail) end.

Answer 4

Bilateral symmetry means something has symmetry across one plane (known as the sagittal plane, and directly down the centre of their body), which means one side of their body approximately mirrors the other side. Mammals, birds, reptiles, fish and amphibians all have bilateral symmetry, as do arthropods, such as insects, arachnids and crustaceans.

Radial symmetry means the symmetry occurs in a radial or circular fashion, as in jellyfish.

Answer 5

Complex animals in general have bilateral symmetry. This means they have symmetry across one plane (known as the sagittal plane, and directly down the centre of their body), which means one side of their body approximately mirrors the other side.

Answer 6

Radial- there is a top and bottom but all other cuts will give 2 equal parts such as a Pizza.

Bilateral-only one cut produces two equal halves. ex: humans.

Answer 7

Radial symmetry : starfish, jellyfish.

Bilateral symmetry : you, me, and all the other vertebrates around.

Answer 8

it differs becausebilateral can be cut in two diffrent ways and be the same on each side and radial cant.

Answer 9

All vertebrates display bilateral symmetry.