Organisms Foraminifera Shell material (CaCO3 or SiO2) Heter

Organisms Foraminifera Shell material (CaCO3 or SiO2) Heterotroph… Organisms  ForaminiferaShell material (CaCO3 or SiO2)   Heterotroph or Autotroph   What is Foraminifera Shell material is it  CaO3 or SiO2 and is it a Heterotroph or Autotroph?Earth Science Science Oceanography OCE OCE1001