The scales of shrimp are rigid while eels have no scales.
Explain the sentence given above.
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Explanation:
- Eels may look like a snakes, but they are actually fish. There are over 800 different species of eel. Freshwater eels are known to travel as far as 4,000 miles to breed. Despite its name, the electric eel is not an eel but a knifefish. Eel is a delicacy in some cultures, but it’s blood is toxic, so it needs to be cooked thoroughly. Keep reading for more interesting facts about eels.
- There are over 400 species of eel.
- Eels live in both saltwater and fresh water.
- Even though the eel looks like a snake it is really a fish. They have long, narrow bodies with long dorsal and anal fins. Most eels have no scales. The eel’s backbone is made up of over 100 vertebrae which makes it very flexible.
- Eels have gills and very sharp teeth.
- Most eels hide and live in caves and rock crevices. They also burrow in the sand. These behaviors allow them to surprise and attack their prey. Some eels will actually chase their prey. The rocks also provide protection for the eel.
- Some species of eels travel up to 4,000 miles to breed. This journey can take the eel over seven months to finish. While on the journey, the eel doesn’t eat.
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Answer:
- A fish scale is a small rigid plate that grows out of the skin of a fish.
- The skin of most fishes is covered with these protective scales, which can also provide effective camouflage through the use of reflection and colouration, as well as possible hydrodynamic advantages.
- The term scale derives from the Old French "escale", meaning a shell pod or husk.
- Scales vary enormously in size, shape, structure, and extent, ranging from strong and rigid armour plates in fishes such as shrimpfishes and boxfishes, to microscopic or absent in fishes such as eels and anglerfishes.
- The morphology of a scale can be used to identify the species of fish it came from.
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