Neco 2020 Biology Question 14

The following dichotomous key is used to classify five groups of organisms.\n1a. Cells lack a nucleus … go to 2\n1b. Cells have a nucleus … go to 3\n2a. Cell wall contains peptidoglycan … Kingdom Monera (Bacteria)\n2b. Cell wall absent … Kingdom Archaea\n3a. Cells contain chloroplasts … go to 4\n3b. Cells lack chloroplasts … go to 5\n4a. Cell wall contains cellulose … Kingdom Plantae\n4b. No cell wall … Kingdom Protista\n5a. Extracellular matrix contains collagen … Kingdom Animalia\n5b. No collagen matrix … Kingdom Fungi\n\nAn unknown unicellular organism is observed to have a defined nucleus, no chloroplasts, a cell wall composed of chitin, and reproduces by budding. Using the key, determine the kingdom to which this organism belongs.