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- https://bio.libretexts.org/Courses/Norco_College/Supplement_to_OpenStax_Biology_2e_for_Norco_College/28%3A_InvertebratesInvertebrate animals are those without a cranium and defined vertebral column or spine. In addition to lacking a spine, most invertebrates also lack an endoskeleton. A large number of invertebrates ar...Invertebrate animals are those without a cranium and defined vertebral column or spine. In addition to lacking a spine, most invertebrates also lack an endoskeleton. A large number of invertebrates are aquatic animals, and scientific research suggests that many of the world’s species are aquatic invertebrates that have not yet been documented.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/19%3A_The_Diversity_of_LifeThis page outlines classifications of eukaryotic life, covering topics such as taxonomy, protists, plants, fungi, and invertebrates. It highlights model organisms like Arabidopsis thaliana and Drosoph...This page outlines classifications of eukaryotic life, covering topics such as taxonomy, protists, plants, fungi, and invertebrates. It highlights model organisms like Arabidopsis thaliana and Drosophila melanogaster, and includes a discussion on bacteria, archaea, and viruses. Notable pathogens like E. coli and anthrax are addressed, along with the rapid identification of microorganisms and the importance of viruses such as influenza and smallpox.
- https://bio.libretexts.org/Courses/Norco_College/OpenStax_Biology_2e_for_Norco_College/28%3A_InvertebratesInvertebrate animals are those without a cranium and defined vertebral column or spine. In addition to lacking a spine, most invertebrates also lack an endoskeleton. A large number of invertebrates ar...Invertebrate animals are those without a cranium and defined vertebral column or spine. In addition to lacking a spine, most invertebrates also lack an endoskeleton. A large number of invertebrates are aquatic animals, and scientific research suggests that many of the world’s species are aquatic invertebrates that have not yet been documented.
- https://bio.libretexts.org/Workbench/General_Biology_I_and_II/05%3A_Unit_V-_Biological_Diversity/5.07%3A_InvertebratesInvertebrate animals are those without a cranium and defined vertebral column or spine. In addition to lacking a spine, most invertebrates also lack an endoskeleton. A large number of invertebrates ar...Invertebrate animals are those without a cranium and defined vertebral column or spine. In addition to lacking a spine, most invertebrates also lack an endoskeleton. A large number of invertebrates are aquatic animals, and scientific research suggests that many of the world’s species are aquatic invertebrates that have not yet been documented.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/General_Biology_2e_(OpenStax)/05%3A_Unit_V-_Biological_Diversity/5.08%3A_InvertebratesInvertebrate animals are those without a cranium and defined vertebral column or spine. In addition to lacking a spine, most invertebrates also lack an endoskeleton. A large number of invertebrates ar...Invertebrate animals are those without a cranium and defined vertebral column or spine. In addition to lacking a spine, most invertebrates also lack an endoskeleton. A large number of invertebrates are aquatic animals, and scientific research suggests that many of the world’s species are aquatic invertebrates that have not yet been documented.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/General_Biology_1e_(OpenStax)/5%3A_Biological_Diversity/28%3A_InvertebratesInvertebrate animals are those without a cranium and defined vertebral column or spine. In addition to lacking a spine, most invertebrates also lack an endoskeleton. A large number of invertebrates ar...Invertebrate animals are those without a cranium and defined vertebral column or spine. In addition to lacking a spine, most invertebrates also lack an endoskeleton. A large number of invertebrates are aquatic animals, and scientific research suggests that many of the world’s species are aquatic invertebrates that have not yet been documented.
- https://bio.libretexts.org/Courses/Monterey_Peninsula_College/Marine_Biology_Laboratory/07%3A_The_Common_Invertebrate_PhylaThis page introduces invertebrates, highlighting their diversity and importance, with over 95% lacking backbones. It outlines various phyla, including Porifera, Cnidaria, Platyhelminthes, Annelida, Mo...This page introduces invertebrates, highlighting their diversity and importance, with over 95% lacking backbones. It outlines various phyla, including Porifera, Cnidaria, Platyhelminthes, Annelida, Mollusca, Nematoda, Arthropoda, Echinodermata, and Chordata, detailing their features and evolutionary significance.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/19%3A_The_Diversity_of_Life/19.01%3A_Eukaryotic_Life/19.1.10%3A_InvertebratesThis page outlines the evolution of Metazoa from unknown eukaryotic groups, emphasizing the emergence of various invertebrate phyla during the Precambrian and Cambrian periods. It details ancient inve...This page outlines the evolution of Metazoa from unknown eukaryotic groups, emphasizing the emergence of various invertebrate phyla during the Precambrian and Cambrian periods. It details ancient invertebrates like sponges, cnidarians, protostomes, deuterostomes, and highlights specific groups such as mollusks, ecdysozoans (e.g., nematodes, arthropods), and chordates, including the invertebrate subgroups Urochordata and Cephalochordata.
