Invertebrate

The common fruit fly, Drosophila melanogaster, has been used extensively for research

Tracheal system of dissected cockroach. The largest tracheae run across the width of the body of the cockroach and are horizontal in this image. Scale bar, 2 mm.

Invertebrates are animals that neither possess nor develop a vertebral column, derived from the notochord. This includes all animals apart from the subphylum Vertebrata. Familiar examples of invertebrates include insects; crabs, lobsters and their kin; snails, clams, octopuses and their kin; starfish, sea-urchins and their kin; and worms. The majority of animal species are invertebrates; one estimate puts the figure at 97%. Many invertebrate taxa have a greater number and variety of species than the entire subphylum of Vertebrata.

单词	Acraniata
释义	Acraniata 英语百科 Invertebrate Invertebrates are animals that neither possess nor develop a vertebral column, derived from the notochord. This includes all animals apart from the subphylum Vertebrata. Familiar examples of invertebrates include insects; crabs, lobsters and their kin; snails, clams, octopuses and their kin; starfish, sea-urchins and their kin; and worms. The majority of animal species are invertebrates; one estimate puts the figure at 97%. Many invertebrate taxa have a greater number and variety of species than the entire subphylum of Vertebrata.
随便看	anti thrust的意思 antithrust的意思 antithrust bearing的意思 Antithymocyte的意思 antithymocyte gamma globulin的意思 Antithymocyte Globuin的意思 Antithymocyte globulin的意思 anti thymocyte globulin的意思 Antithymocyte immunoglobulin的意思 antithymocyte serum的意思 Antithymoglobulin的意思 antithyoxinogenesis的意思 antithyroglobulin的意思 antithyroglobulin ab的意思 antithyroglobulin antibodies的意思 antithyroglobulin antibodies assay的意思 anti thyroglobulin antibody的意思 Antithyroglobulin antibody的意思 antithyroglobulins的意思 antithyroglobulin serum的意思 antithyroid的意思 Antithyroid agent的意思 Antithyroid agents的意思 antithyroid antibodies的意思 anti thyroid antibody的意思

Acraniata

Invertebrate