Anna is observing slides of unlabeled organisms. The organisms are unicellular, have delicate glass-like cell walls with sculpturing, and show all the cell organelles, including chloroplasts. Which organism is she observing? Euglenophytes Dinoflagellates Diatoms
Based on the characteristics that she's observing, the answer would be : Diatom
This kind of organism usually are producers within the food hierarchy , the most common type is phytoplankton.
Hope this helps
If Anna is observing slides of unlabeled organisms, which are unicellular, have delicate glass-like cell walls with sculpturing, and show the cell organelles, including chloroplasts, the organism she is observing are diatoms.