Overviews of two biology units for junior and senior high school gifted and talented students are presented. The Durham North Carolina City School units are entitled, "The Identification, Collection, and Control of the Japanese Beetle through the Growth of Roses and Lawn Care" and "Treasure along the Nantahala River." The first, an entomology unit for seventh and eighth grade students with a basic knowledge of science, is outlined in terms of learning activities, research paper topics, laboratory experiences, and materials and equipment. A sample laboratory lesson plan is presented, which includes objectives, assignments, and required readings. Lists of expenditures and references for the entomology study unit are also provided. The second biology unit, for 10th grade, is used in conjunction with an ecological investigation of the Appalachian mountain area. The unit is outlined in terms of the overall purpose; specific objectives; the plan of action; student activities before, during, and after the field trip; and the evaluation of students. Objectives of the ecology unit include: developing appreciation of the biological significance of the river area; learning how biology is related to many disciplines; learning to distinguish right and left brain thought patterns; and recognizing the personalities and talents of other participants. (SEW)