Which of the following activities would represent a physiological study?
observing the structure of the interior of the heart
studying a model of the kidney
examining the surface of a bone
viewing muscle tissue through a microscope
determining normal blood sugar levels for 20 -year-old students

Determining normal blood sugar levels for 20-year-old students is a classic physiological study! It involves measuring how the body regulates glucose, which is crucial for understanding metabolism and overall health. This activity can reveal important information about how lifestyle and diet affect blood sugar and can have implications for preventing conditions like diabetes.

Viewing muscle tissue through a microscope is also a fascinating physiological exploration! Under the microscope, you can observe the different types of muscle fibers and their structures, providing insights into how muscles function and respond to stimuli. This can help in understanding conditions related to muscle health and development, ultimately contributing to advancements in medicine and fitness training!