Question

a scientist was observing a slide made from pond water. she observed a unicellular organism with chloroplasts and a nucleus. which domain should this organism be classified into? possible points: 4. options: eukarya, bacteria, archaea, both archaea and bacteria

Explanation:

Eukarya contains organisms with a nucleus and membrane - bound organelles like chloroplasts. Bacteria and Archaea are prokaryotes without a nucleus. Since the observed organism has a nucleus and chloroplasts, it belongs to Eukarya.

Answer:

A. Eukarya