In some animals (for example, us), symmetry is attractive and a symmetrical individual is more likely to reproduce. However, I don't know if this is the case with simpler animals like rotifers (I was trying to look this up, and came across your question).
they actually have radial symmetry...
Celiaphlatus and forward movement. There is a few advantages of the bilateral symmetry. Some of the advantages are food, movement and animals.
Some mollusks have bilateral symmetry. Mollusks include gastropods such as snails, bivalves such as oysters, and cephalopods such as squid. Some bivalves have bilateral symmetry.
Symmetry in biology is the balanced distribution of duplicate body parts or shapes. The body plans of most multicellular organisms exhibit some form of symmetry, either radial symmetry or bilateral symmetry or "spherical symmetry". A small minority exhibit no symmetry (are asymmetric).
The hydra has radial symmetry. The hydra belongs to the phylum Cnidaria and many immobile species in this phylum exhibit radial symmetry. Some marine animals that have bilateral symmetry are fish, sea turtles, and marine mammals.
All arthropods, which are invertebrates, have bilateral symmetry. Arthropods include all insects, centipedes, millipedes, crustaceans and arachnids. 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.
Believe it or not Mollusks start out with bilateral symmetry. Some retain it such as slugs, snails, squid, octopuses, and limpets. Then there are others that lose it as they mature such as oysters, clams, scallops, etc.
Yes. Turtles, like all reptiles and other vertebrates, have bilateral symmetry. 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.
yes. because a symmetry is when you draw a reflection so radial reflection is just if you draw the reflection but in the colors it has drawn.
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Seahorses are fish; therefore, like all vertebrates, they 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.