Radiolarian tests are intricate mineral structures produced by radiolarians, a group of single-celled protists that inhabit oceanic waters. These tests are primarily composed of silica, which the organisms extract from their environment to form their skeletal framework. The structure and composition of these tests provide valuable insights into the biological processes and mechanisms of biomineralization that occur within these microscopic organisms.
congrats on reading the definition of radiolarian tests. now let's actually learn it.