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Dolphins are mammals- so they have lungs, and breathe air through a 'blowhole' on top of their head. They do not have gills like the fishes.
Wiki User
∙ 12y ago
Wiki User
∙ 6y agoBeing mammals - they lack the swim bladder that fish have. They simply use their tails to 'steer' themselves down or up.
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Does helium float or sink?
Helium is light and it will float / rise.
What will rise and what will sink?
Objects that are less dense than the fluid they are in will float, while objects that are more dense will sink. The buoyant force acting on an object is determined by the difference between the object's weight and the weight of the fluid it displaces.
What causes huge slabs of rock to rise and sink?
Huge slabs of rock rise and sink due to movement in the Earth's tectonic plates. When plates collide, one may be forced below the other, leading to subduction and sinking. Conversely, when plates separate, magma rises to create new crust, causing rock to rise.
When happens when cooler air and heated air interact?
The cool air will sink and the warm air will rise.
When heavier elements sink toward the core and lighter elements rise to the top the Earth is said to be what?
The Earth is said to be undergoing differentiation when heavier elements sink towards the core and lighter elements rise to the top. This process results in the formation of distinct layers within the Earth based on differences in density.
What is the opposite of sink?
The opposite reaction of to sink (in liquid) is to float.However the opposite motion sink (move lower) would have the opposite rise.
What are some Lava lamp questions for science projects?
why does the lava sink or rise?
How come Killer Whales do not Sink?
bc they are swimming
Why whales sink in water?
Whales alter their bouyancy depending upon the amount of air that they have in their lungs.
Some rise and some sink what is it?
Fastpitch
What the opposite of sink?
The opposite reaction of to sink (in liquid) is to float.However the opposite motion sink (move lower) would have the opposite rise.
Sink or swim?
This phrase is often used to describe a situation where one must either succeed on their own merits ('swim') or fail ('sink'). It conveys the idea that there is no middle ground, and one must rise to the challenge or face the consequences.
What causes fluids to sink and rise?
Fluids sink and rise due to differences in temperature and density. When a fluid is heated, it becomes less dense and rises, while cooler fluids are denser and sink. This movement of fluids is known as convection.
What are two natural occurrences common in the Andes that cause the mountains to rise and the coast to sink?
What are two natural occurrences common in the Andes, that cause the mountains to rise and the coast to sink?
What determines if a balloon filled with a gas will rise or sink in the air?
A balloon filled with a gas will rise or sink depending on the density of the gas inside compared to the surrounding air. If the gas inside is less dense than the surrounding air, the balloon will rise. If the gas inside is more dense, the balloon will sink.
Do whales have prey?
Yes Whales do have their own prey.They eat...FishSealsSea LionsOther Whales
Do whales live on their own?
No, most whales live in groups
