Fishes are adapted to their environment through the evolution of a few special organs e.g. gills, swim bladders and fins. Gills help in absorbing the oxygen present in the water and swim bladders allow to maintains the proper buoyancy level and fins help to move the fish in the water.
What are the adaptive features of fish?
Answer. the four adaptive features of fish is as follows- they contain gills to breathe in water without any problem, they have a streamed line body which helps them to swim freely in water, they are cold blooded which helps them to survive in the cold water, they have several fins which help them to swim.
How are fishes adapted in water write any three points?
Answer. They have gills to breathe. They have fins to swim. They are able to take oxygen from water.
What are the adaptive features of water lily?
Water lilies have a number of adaptations that help them survive in water, including big leaves that float on the water’s surface to attract ample sunlight for photosynthesis. The top side of the leaf is covered with a cuticle to keep it as dry as possible, and the underside has thorns to protect against predators.
Why are fishes so successful?
Fish are a very vast species and come in many different varieties. … Some fish like puffers swell to two or three times their size when scared which helps to ward of predators. Other things that make fish successful are their ability to find a special niche so that they can get enough food for survival.
What are 2 adaptations of fish?
Adaptations for Water
- Fish have gills that allow them to “breathe” oxygen in water. …
- Fish have a stream-lined body. …
- Most fish have several fins for swimming. …
- Fish have a system of muscles for movement. …
- Most fish have a swim bladder.
How is a fish adapted to live in water class 6?
The streamlined body shape helps the fish to move through the water easily (because such a shape offers least resistance to motion). (2) The fish has special organs called “gills” which-help it to absorb oxygen-dissolved in water for breathing. A fish can live in water only because it is adapted to breathe in water.
What are the special features that help a fish to live in water?
The features which help fishes to adapt to live in water:
- Streamlined, spindle-shaped body which is covered with scales. …
- Skeleton is made up of thin bones with the flexible backbone.
- Flat fins and tails to help them swim, change direction and to keep the body balanced.
What are the parts common between Water Lily and Lotus?
Water lily flowers and leaves are thick and waxy while the lotus’ are thin and papery. A water lily also has a recognizable notch in each leaf. The water lily petal is pointed and creates a star-like bloom; the lotus petal is more rounded, sometimes ruffly.
What is the difference between Lily and Lotus?
In the world of flowering aquatic plants, nothing beats a water lily or a lotus flower. … The biggest difference is that water lilies (Nymphaea species) leaves and flowers both float on the water’s surface while lotus (Nelumbo species) leaves and flowers are emergent, or rise above the water’s surface.
Why do lily pads float?
A system of stems and tubes run underneath the lily pad. These tubes, which are connected to openings called stomas in the top of the leaves, help the pad float and collect oxygen through the stoma. This oxygen is transferred to the water lily’s stem and down to the plant’s roots.
Are any fish smart?
“Fish are more intelligent than they appear. In many areas, such as memory, their cognitive powers match or exceed those of ‘higher’ vertebrates including non-human primates.” Fish’s long-term memories help them keep track of complex social relationships.
Are humans fish from a Cladistic standpoint?
Most people agree that goldfish are an example of fish, and coelacanths are also an example of fish. But we humans (in fact all tetrapods–amphibians, reptiles, and mammals) shared a common ancestor with coelacanths more recently than either us or coelacanths shared a common ancestor with goldfish!
Are fish older than dinosaurs?
Since the extinction event that wiped out the dinosaurs 66 million years ago, fish have evolved and diversified, leading to the wide variety of fish species we see today. According to a new study, many of today’s fish lineages emerged right around this time. …