Invertebrates

Corina Saenz
Mind Map by Corina Saenz, updated more than 1 year ago
Corina Saenz
Created by Corina Saenz about 3 years ago
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Description

Mind Map on Invertebrates, created by Corina Saenz on 01/11/2018.

Resource summary

Invertebrates
  1. Are classified into phylums
    1. Porifera/Sponges

      Annotations:

      • A sponge is a member of the phylum Porifera. It is a simple animal with many cells, but no mouth, muscles, heart or brain. It is sessile: it cannot move from place to place the way most other animals can. A sponge is an animal that grows in one spot like most plants do.
      1. Cnidarians

        Annotations:

        • Cnidaria is a phylum with about 11,000 species of animals.All of them are simple and aquatic, and most of them live in the sea. Some are colonial, composed of zooids which may be clones. Cnidarian zooids may take the form of polyps or medusae at different phases of their life.
        1. Arthropods

          Annotations:

          • Arthropods (Greek language for "joint-legged") are a large group of invertebrate animals. Insects, spiders, crabs, shrimp, millipedes, and centipedes are all arthropods. In the scientific classification, all arthropods are members of the phylum Arthropoda. Arthropods have segmented body, an exoskeleton and legs with joints. Most arthropods live on land, but some live in water. Arthropods have by far the greatest number of species of any animal group. Arthropods are a source of food for many animals, including humans.
          1. Worms

            Annotations:

            • A worm is a type of animal that usually has no arms or legs and has a cylinder-like body. All worms are invertebrates, meaning that they do not have a backbone. Worms can come in many different sizes. Many worm species are so small that they can't be seen with the human eye.
            1. Mollusks

              Annotations:

              • Mollusk, also spelled mollusc, any soft-bodied invertebrate of the phylum Mollusca, usually wholly or partly enclosed in a calcium carbonate shell secreted by a soft mantle covering the body. Along with the insects and vertebrates, it is one of the most diverse groups in the animal kingdom, with nearly 100,000 (possibly as many as 150,000) described species.
              • Mollusk, also spelled mollusc, any soft-bodied invertebrate of the phylum Mollusca, usually wholly or partly enclosed in a calcium carbonate shell secreted by a soft mantle covering the body. Along with the insects and vertebrates, it is one of the most diverse groups in the animal kingdom, with nearly 100,000 (possibly as many as 150,000) described species.
              1. Echinoderms

                Annotations:

                • Echinoderm, any of a variety of invertebrate marine animals belonging to the phylum Echinodermata, characterized by a hard, spiny covering or skin. 
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