Q:

What are animals without a backbone called?

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Quick Answer

Animals without a backbone are called invertebrates. These organisms lack a spinal column and cranium base in their body structure. There are over 1 million known species of invertebrates.

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What are animals without a backbone called?
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Full Answer

Invertebrates can be grouped into eight taxonomic classes. These classification groups, also known as phyla, include cnidarians, porifera, platyhelminths, nematode, echinoderms, molluscs, arthropods and annelids. Within each of these classifications are sub-groups that are based on characteristics of the organisms. For instance, the animals categorized as arthropods can further be divided into sub-groups such as insects, crustaceans and arachnids. Being heterotrophs, invertebrates consume both plants and other animals for their sustenance.

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    What animals don't have tails?

    A:

    Most animals without backbones, known as invertebrates, have no tails. Among these are spiders, most insects and frogs. However, every species of mammal has a tail at some point in its development. Human embryos possess tails during their fifth to eighth week of development. In rare cases, humans are born with imperfectly developed tails, which must be removed by surgery.

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    What animals don't have a backbone?

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    Is a butterfly an invertebrate?

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    According to the University of Arizona, butterflies belong to the phylum Arthropoda and subsequently classify as invertebrates. Butterflies are insects that go through three stages of development: larva, pupa and adult. Each stage of development is preceded by a series of molts.

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    What do wild foxes eat?

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