After each generation of reproduction, they get smaller. Though some put them in Stramenopila or Chromista, they, along with golden algae, are in the phylum (*) Chrysophyta. Bound by the frustule, two glassy silicate walls that overlap like top and bottom of a petri plate, these protists are the leading photosynthetic producers in oceans. For 10 points— name these members of Bacillariophyta whose sediments make up a kind 
After each generation of reproduction, they get smaller. Though some put them in Stramenopila or Chromista, they, along with golden algae, are in the phylum (*) Chrysophyta. Bound by the frustule, two glassy silicate walls that overlap like top and bottom of a petri plate, these protists are the leading photosynthetic producers in oceans. For 10 points— name these members of Bacillariophyta whose sediments make up a kind of earth.
After each generation of reproduction, they get smaller. Though some put them in Stramenopila or Chromista, they, along with golden algae, are in the phylum (*) Chrysophyta.
diatoms