Do all animals have a back bone?

Answer 1

Yes. Having a spine or a vertebral column makes them a mammal. A mammal is any of various warmblooded vertebrate animals of the class Mammalia, including humans, characterized by a covering of hair on the skin and, in the female, milk-producing mammary glands for nourishing the young.

Yes. That is one of their defining characteristics. Of course not every animal that has a backbone is a mammal.

Answer 2

No, not all animals have a backbone. Animals with a backbone are called vertebrates, and they belong to the subphylum Vertebrata. Invertebrates, which make up the vast majority of animal species, do not have a backbone. Examples of invertebrates include insects, worms, jellyfish, and mollusks.

Answer 3

Well, honey, not all animals have a backbone. Animals without a backbone are called invertebrates, like jellyfish, insects, and worms. So, next time you're at the zoo, remember that some critters are strutting their stuff without a spine to hold them up.

Answer 4

No, not all animals have a backbone. Animals without backbones are known as invertebrates, such as insects, Spiders, and jellyfish. These animals have different types of structural support systems, such as exoskeletons or hydrostatic skeletons.

Answer 5

No, most animal species do not have backbones. In other words, most are invertebrates.

Nobody knows exactly how many invertebrate species there are, but scientists estimate that about 98% of all animal species lack backbones, and only some 2% are vertebrates (have backbones).

Answer 6

No, I am in AP Biology, we had a test question like this. Many animals have backbones and are put in the Vertebrates category, but number of species that are invertebrates out weigh the number that are vertebrates. Hope this helps!

Answer 7

Not all animals have backbones. Actually most animals on earth are invertabrates.

Answer 8

Yes, all mammals have backbones because all mammals are vertebrates.

Answer 9

only animals that are vertebrates.

Yes that is right not all animals have a back bone

Answer 10

Yes. The backbone can also be called a spine.