B. Scheduling Tips 1. Send flies, vials and magnifiers home with students so they can complete counts outside of class. Invite other students to lab in order to increase population size. Transpiration A. Lab Tips 1. Use house plant if bush beans are not available.
Cut plant stems and insert stem into tubing while stem is submerged in a pan of water.
This prevents air gaps from forming in xylem vessels. Preparing stem cross section can be optional. B. Scheduling Tips 1. Use prepared slides from step cross sections. Circulatory System A. Lab Tips 1.