Characteristics of protists quiz online. Take a quiz on organisms with the kingdom Protista. Also learn about some examples of organisms within this group. These are mostly microscopic and unicellular organisms with a few exceptions. Although unicellular, these organisms have a nucleaus and organelles which makes their cells perform complex functions. Their reproduction is assexual. Nutrition is through photosynthesis although differes in some cases.| Multiple choice quiz featuring biology test questions for students to review biology topics. Click on each question and select the correct answer below and submit. Feedback is instant and at the end you will get your score. Biology quiz for 2nd, 3rd, 4th, 5th, 6th, 7th grades to review. Focus: Science Trivia | science quiz questions | Biology Test | Biology questions.