This lab is designed to provide students with a laboratory experience with sea urchins in which they will observe gametes and practice microscope skills. After making these observations, students will use these gametes to observe fertilization and development of the sea urchin. Most of the organisms with which we are familiar, including humans, started with a sperm and an egg. One such organism, the sea urchin, has sperm and eggs remarkably similar to our own. Ask and answer questions while introducing the model to insure active participation and check understanding.
Students study eggs and sperm under their microscopes, using the gametes collected by the teacher.
Students will make careful drawings of their observations. Students write up their lab reports and answer implication questions .