The most body covering of a bird is the beak.
vertebrates differ from other animals because they have a central nervous system running down their back
they have special pouches that they/ carry their babies in. Mammals like these are called marsupials.
Yes, but they are different from other vertebrates in that their backbones are made of cartilage, like the rest of their skeletal structure.
Vertebrates are just that vertebrates, that ALL have a backbone, fish, mammals, amphibians, reptiles, birds, marsupials, primates, rodents... etc.
The Genes that control development in different vertebrates are only slightly different from each other
A zebra has black and white stripes covering its body. These stripes make the zebra unique to any other animal.
Hair and milk.
some have back bones and the others dont
Vertebrates have backbones, other animals (besides vertebrates) don't have back bones.
Yes, an emu is a vertebrate as are all other birds. They have an internal skeleton and a backbone which makes them vertebrates. All mammals, reptiles, amphibians and fish (true fish) are also vertebrates.
Fish is aquatic vertebrates while other vertebrates are which animal have backbone.
The homophone for "bark" is "bark," as it sounds the same but has different meanings. One meaning is the sound a dog makes, while the other refers to the outer covering of a tree.