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What are three main characteristics of birds and mammals and reptiles all have in common?
Wiki User
∙ 14y ago
1. Birds have no diaphragm so the abdomen communicates directly with the thorax, this includes the lungs, heart and air sac.
2. Birds have the ability to fly. This is a great advantage when escaping form predators
3. Mammals have the ability to be coordinated on the ground, are able to move easier.
Wiki User
∙ 12y ago
Wiki User
∙ 14y ago1. Reptiles are cold-blooded, while mammals and birds are warm-blooded.
2. Reptiles are covered in scales, while birds are covered in feathers, while mammals have at least some fur.
3. All birds lay eggs. Almost all mammals give live birth, but the monotreme mammals lay eggs. Most reptiles lay eggs, but some give live birth, and some have eggs that hatch inside the mother just before being laid (ovoviviparity).
Wiki User
∙ 14y ago1. All are amniotes.
2. All breathe only oxygen.
3. All have dead cells forming the outer layer of skin in order to retain water.
There are more common characteristics than these three.
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What has the most in common birds fish amphibians reptiles and mammals?
reptiles and amphibians have the most in common
What do birds snails mammals and reptiles have in common?
They are all animals. That is about it.
What are the five vertebrate groups characteristics?
Mammals, reptiles, amphibians, birds and fish are the five groups of animals.
What characteristics are common to both birds and reptiles?
Lay eggs
Are birds and reptiles mammals?
N they are a seperate group like amphibians,mammals,reptiles,birds and fish
Which of the groups of animals is common to wetlands?
amphibians, reptiles, migratory birds, small mammals
What kind of animals have endoskeletons?
mammals,birds,reptiles and amphibians.Any animal with its skeleton inside it.
Do all mammals have a common ancestor?
Not actually. There were several different marine reptiles that had mammalian characteristics, notably the group known as pelycosaurs. The earliest mammals appeared early in the Age of Reptiles (Mesozoic Era), but were uniformly small in size. The group called synapsids took an evolutionary path to mammals while the sauropsids became today's reptiles and birds.
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.
What characteristics do scientists used to classify vertebrates into smaller groups?
The five groups are Fish, Amphibians, Reptiles, Birds, Mammals
What are the classes of vertebrates and the characteristics for each class?
Fish, Amphibians, Reptiles, Birds, Mammals. Vertebrate means animals with a backbone!
