0
Wiki User
∙ 13y agoMany scientists believe that they did, though there is no known evidence of this.
Add your answer:
Earn +20 pts
What do ocean animals have that land animals do not?
The answer is ocean animals have fins, flippers, and gills.
What becomes of gill slits in land animals?
Gill slits on land animals have almost completely disappeared. These animals that now live on land no longer need gills.
How are sea animals and land animals different?
sea animals usually have gills and can only be underwater and if on land will die, Land animals do not have gills and were ment for the land if they go in water for to long they will die to. Provided by Barto
Why aquatic animals cannot breathe when they are on land?
they cant breathe because gills do not support air on land where many other gases are present
What kinda animal have gills?
Fish are animals that have gills.
Is it true Early land animals had to return to the water to reproduce?
Early land animals had to return to the water to reproduce.
Similarities between water animals and land animals?
aquatic organisms breath, eat, and live under water. whereas terrestrial animals/organisms live, breath, and eat on land
Is shark land animals?
No, they're exclusively aquatic animals, mostly in high saline water (the sea). They're of one of the oldest and more primitive fish lineages, don't really have the gills to breathe in non moving water and can't breathe air either through their gills or skin, so they couldn't be land or even amphibious animals.
Gills not function well on land?
No, gills do not work on land. Gills are used for water purpopes only, to help breathe under water.
Did eraly land animals have lungs and gills?
If the petunia's grow on the left side of lake, then this statment is TRUE. If not, it's FALSE.Mmkay?
How did early land animals differ from those common today?
Early land animals were not as diverse as today's land animals. In time there has been adaptation of species where certain genetic traits and become predominant. Mutations have allowed for more variation over time.
What is the diffrance between land and sea animals?
well for starters sea animals live in the water and land animals live on land. Also sea animals breathe through things called gills or blow holes and land animals breathe through their nose or mouth. There are lots of other things and I recommend you look it up cuz it is quite interesting and the pics are cool *bonus*!
