Fish have scales for many reasons. Firstly, to protect the skin of the fish from attacks from predators, parasites and other injuries. Secondly, scales overlap each other in the same way that an armour would protect a person. Hence, providing a layer of protection for the fish.
Why fish have scales on their body?
Scales protect fish from predators and parasites and reduce friction with the water. Multiple, overlapping scales provide a flexible covering that allows fish to move easily while swimming.
Why do fish have slippery scales on their body for Class 6?
Answer: A fish has slippery scales on its body. These scales protect the fish and also help in easy movement through water.
Can fish live without scales?
Scales prevent the fish from becoming dehydrated by maintaining the proper balance of water inside the fish. Technically, a fish would be able to live it’s whole life without scales, as long as it avoids all the threats listed above.
Can a fish hear?
Our ears and brain translate vibrations into sounds and language. Fish hear, but their “ears” are on the inside. Bony fishes detect vibrations through their “earstones” called otoliths. Both people and fish use parts of their ears to help them with balance.
Why does a fish has slippery?
Fish secrete a glyco-protein slime from the cells in their skin to make it harder for parasites to attach. Some fish even secrete toxins into the slime to deter predators. Fish scales provide protection and reduce water turbulence.
Do bodies have slippery scales?
Solution. Slippery scales present on the body of fishes help them in provide easy movement in water as well as protection from predators. The scales are too slippery because the epidermal cells (present below the scales), secrete mucous.
Do fish have scales on their body?
Most bony fishes are covered with the cycloid scales of salmon and carp, or the ctenoid scales of perch, or the ganoid scales of sturgeons and gars. Cartilaginous fishes (sharks and rays) are covered with placoid scales.
What if fish has no scales?
Fishes that don’t have scales include the clingfish, catfish and shark family, among others. Instead of scales, they have other layers of material over their skin. They can have bony plates that are also covered by another layer or tiny, teeth-like protrusions covering their skin.
Do fishes feel pain?
Fish do not feel pain the way humans do, according to a team of neurobiologists, behavioral ecologists and fishery scientists. The researchers conclude that fish do not have the neuro-physiological capacity for a conscious awareness of pain. Fish do not feel pain the way humans do.
Do fish feel pain when you clean them?
That their brains are not complex enough to experience pain. … That their behaviors when stressed — such as wriggling violently on a hook — are just unconscious reactions, disconnected from the suffering of sentient beings.
Can my fish see me?
A new study says, Yes, it probably can. Researchers studying archerfish found the fish can tell a familiar human face from dozens of new faces with surprising accuracy. … A fish has a tiny brain. And it would have no reason in its evolution to learn how to recognize humans.
Do fish get thirsty?
The answer is still no; as they live in water they probably don’t take it in as a conscious response to seek out and drink water. Thirst is usually defined as a need or desire to drink water. It is unlikely that fish are responding to such a driving force.
Do fish swim while they are sleeping?
Sleep Swimming: Many fish need to stay moving in order to keep oxygen-rich water moving over their gills (13). Certain types of damselfish living in coral reefs actually increase the speed at which they move their fins while at rest. Floating in Place: Some fish don’t need to keep swimming while sleeping.