Answer :
The larvae have bilateral symmetry , yet the adults have radial symmetry, with many spines protruding from the body. the animal is sea urchin
Radial cleavage is a type of embryonic development that results in the formation of radial symmetry. This means that the embryo develops into an adult with many spines protruding from the body. This pattern of development could occur because the sea urchin larva has bilateral symmetry.
This means that the larva has two sides that are mirror images of each other. However, the adult sea urchin has radial symmetry. This means that the adult sea urchin has many spines protruding from the body. The reason why the sea urchin larva has bilateral symmetry but the adult has radial symmetry is not fully understood.
However, it is thought that this pattern of development could be due to the fact that the sea urchin larva develops in a watery environment. This environment provides the larva with the opportunity to move around and explore. As the larva moves around, it comes into contact with different objects. This contact causes the larva to change shape. Over time, the larva develops into an adult with radial symmetry.
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