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Jun 14, 2020 · The definition of radial symmetry in animals, plants and other organisms concerns a complete or partial form that is the result of a series of anatomical sections that repeat on multiple planes. By turning each section on a rotational axis, they will rotate above 0° and under 360° to near-exactly match the next section.
Feb 17, 2023 · The segments of an orange, the seed distribution in kiwi fruit, and the five-pointed star of an apple core show a radial pattern. In animals, two phyla – cnidarians and echinoderms exhibit radial symmetry. Cnidarians include jellyfish, sea anemones, and corals. Specifically, jellyfish has radial symmetry in four points around its center.
Dec 22, 2023 · A bicycle wheel is a great example! It is seen in animals and plants, particularly in flowers. You can also describe how many times the shape can be divided. For example, shapes with five-fold radial symmetry can be dived five times. This is also called pentaradial symmetry. Animals with radial symmetry have their body parts arranged around a ...
Mar 13, 2021 · The phylum Cnidaria includes other jellyfish, corals, and sea anemones, all of which are radially symmetrical. Other examples of animals that display radial symmetry include sea urchins and sea cucumbers, both of which belong to the phylum Echinoderm. Outside of the animal kingdom, many flowers also exhibit radial symmetry.
- Kate Latham
The vast majority of animals, however, exhibit a definite symmetrical form. Four such patterns of symmetry occur among animals: spherical, radial, biradial, and bilateral. In spherical symmetry, illustrated only by the protozoan groups Radiolaria and Heliozoia, the body has the shape of a sphere and the parts are arranged concentrically around ...
- The Editors of Encyclopaedia Britannica
Radial Symmetry: In radial symmetry the body can be divided into two roughly equal halves by any one of many vertical planes passing through the central axis (Fig. 9.3A-C) like the spokes of a wheel. The animals which exhibit primarily radial symmetry are cylinder in form and the similar parts of the body are arranged equally around the axis.
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Radial symmetry is much rarer because it’s the result of specific genetic and developmental conditions. Although radial symmetry is a rare trait, it doesn’t rule out the existence of certain animals with radial symmetry. This article will discuss some of the extraordinary animals that have this trait. What is radial symmetry?
