(A) Young Volvox adult, with about 2,000 small somatic cells in a monolayer at the surface, and nineteen large gonidia embedded in the extracellular matrix (ECM), just under the somatic cell layer ...

Ancestors of the alga Volvox made the transition from the solitary life of a single-celled organism to that of a multicellular colony much earlier than previously thought, according to new ...

Assisted by 21 excellent plates containing many figures and diagrams, he traces the various divisions and shows that after bipartitions resulting in 1024 cells, the cells of J. aurea, having ...