A new section on the histology of blood has been added. Investigating the Excretory and Reproductive Systems . Students comparatively study invertebrate excretory systems including making preparations of living flame cells from planarians. They integrate the gross and microscopic studies of the mammalian systems. Investigating the Properties of Muscle and Skeletal Systems .
Students study the gross and microscopic anatomy of vertebrate systems.
A new section on the physiology of muscle uses physiogrip transducers connected to a computer to measure the properties of muscle, replacing the old exercise based on frogs. Investigating the Nervous and Sensory Systems . Students learn the gross and microscopic anatomy of the mammalian brain, spinal cord, eye and ear. Directions are included for measuring some of the properties of cones in human eyes and for measuring conduction velocity of the giant nerve fibers in an earthworm. Section 6 Ecological Biology Statistically Analyzing Simple Behaviors .