The structures made of bone in the fins of perch, minnows, and eels are known as fin rays or lepidotrichia. These bony elements provide support and structure to the fins, allowing for greater maneuverability and stability in the water. In different species, the arrangement and number of fin rays can vary, reflecting their adaptations to specific aquatic environments.
rays
The structures made of bone contained in the fins of perch are called fin rays. They provide support and help control the movement of the fins. In minnows and eels, these fin rays are made of a protein called elastin, which gives them flexibility and allows for precise movements in the water.
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No, it has a skeleton of bone.
The structures that are found deep within the petrous part of the temporal bone are related to the inner ear. Most scientists divide the structures into two parts the mastoid part and the petromastoid part.
A perch's skeleton is made of true bone instead of cartilage. Perch bones differ somewhat from human bones, but still contain components such as connective tissue and minerals.
About 40% of the body's sodium is contained in bone
Temporal (bone)
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cheek bone
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