Amoebas are unicellular organisms, while human beings are multi-cellular and the most intelligent of organisms. however, both are classified as eukaryotes. how will you justify this reasoning?

Which statement describes characteristics of planarians? a they live in oceans, are parasites, and reproduce only sexually. b they live in fresh water, are parasites, and reproduce only asexually. c they live in oceans, are free living, and reproduce sexually and asexually. d they live in fresh water, are free living, and reproduce sexually and asexually.