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Birds are nor mamals or reptiles. They are it's own category,
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What kind of animals have endoskeletons?
mammals,birds,reptiles and amphibians.Any animal with its skeleton inside it.
What are reptiles birds mammals are collectively called?
Vertibrates.
Does a spider lay amniotic eggs?
No, only reptiles, mammals, and birds have amniotic eggs.
What are the five classes of vertebrates in terms of structure?
fishes amphibians reptiles birds mammals
Why do mammals lose more heat energy than reptiles?
mammals tend to have heat in their bodies more than their surroundings
Are birds and reptiles mammals?
N they are a seperate group like amphibians,mammals,reptiles,birds and fish
What kind of animals have endoskeletons?
mammals,birds,reptiles and amphibians.Any animal with its skeleton inside it.
Are penguins reptiles or mammals?
penguins are neither mammals or reptiles. penguins lay eggs.
Are birds closest to mammals or reptiles?
While at first glance birds seem similar to mammals, they are more closely related to reptiles.
Which type of critter did birds and mammals evolve from?
Birds and mammals both evolved from reptiles.
What shows the order in which vertebrates evolved?
1:fish 2: amphibians 3: reptiles 4: birds 5: mammals
What are the 5 groups of vertebrates?
The 5 groups of vertebrates are fish,amphibians,mammals,reptiles and birds. Vertebrates are animals with a backbone.
Are chimpanzees fish birds mammals amphibians reptiles or insects?
Chimpanzees are mammals.
Which reptiles are vertebrates?
Yes, mammals, birds and reptiles are all vertebrates.
What is the order which vertebrates evolved?
Fish - amphibians - reptiles; and from the reptiles birds and mammals.
Mammals and birds are descended from what group of vertebrates?
Mammals and birds are both descended from a group of vertebrates known as archosaurs. This group included early reptiles and gave rise to both dinosaurs (which birds evolved from) and the ancestors of mammals.
What is the oppisit of mammals?
Mammals do not have an opposite, but there are other forms of life such as birds and reptiles.
