AP BIOLOGY

Detailed explanation-1: -The domain Eukarya consists of all organisms that have a nucleus. It comprises the four remaining kingdoms of the six-kingdom system: “Protista, ” Fungi, Plantae, and Animalia.

Detailed explanation-2: -The third domain, Eukarya, consists of organisms whose cells have a nucleus. It’s also the only domain that contains multicellular and visible organisms, like people, animals, plants and trees. Bacteria and arachaea are unicellular and lack a nucleus.

Detailed explanation-3: -Many people think that eukaryotes are all multicellular, but this is not the case. While prokaryotes are always unicellular organisms, eukaryotes can be either unicellular or multicellular. For example, most protists are single-celled eukaryotes!

Detailed explanation-4: -The kingdom Animalia is the most evolved and is divided into two large groups-vertebrates and invertebrates. These animals are multi-celled, heterotrophic eukaryotes with aerobic respiration, sexual reproduction and the ability to move.