Invertebrates {colonial invertebrate}| can have cells {zooid} that aggregate to form organisms, in which cells can specialize. Zooids act like specialized organs. In hydrozooid colonies, ectoderm cells recognize each other using cell-surface proteins from histocompatibility genes. Hydrozooid colonies have nerve-cell zooids. Colonial-invertebrate cells communicate using chemical signals. Colonial invertebrates reproduce by budding. Colonies can form within colonies.
Biological Sciences>Ecology>Community>Society>Kinds
4-Ecology-Community-Society-Kinds
Outline of Knowledge Database Home Page
Description of Outline of Knowledge Database
Date Modified: 2022.0224