详情

tructure shape: A scale is usually divided into 4 parts: Front part: Plugs into the skin, has many concentric and radial grooves. Posterior: Exposed outward, posteriorly, distributed by many pigmentation cells, sometimes with spines on the posterior margin of the scale. In fish classification, it is possible to rely on the posterior part of scales to divide bone scales into two categories: round scales and ctenoid scales. The upper and lower sections have many concentric grooves.

Attached to the fish scales there is also fish skin. The skin's job: fight germs. Participates in respiration and excretion. Participates in osmotic pressure regulation of fish blood. Skin products: unicellular, multicellular, toxic, squamous, and luminous.
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