Quiz on labelling parts of a bird's eye diagram, anatomy of the eye labeling quiz, basic eye anatomy. In this exercise students will learn the external eye anatomy of a bird. The diagram is embedded within an interactive online quiz with drag and drop label functions. Featuring parts include the sclera, sclerotic ring, optic nerve, fovea, retina, choroid and muscle. You are required to look at the diagram and determine the position of each part. After practicing, download this worksheet and get more practice offline. Also start learning about the different functions of each part for a bird's vision.| 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: Online science Trivia | science quiz questions | Biology Test | Biology questions.