10 uses of Cellular Medicine

Why has two different alleles for the same trait?

How do all types of diffusion/passive transport actually ‘work’ without using even the smallest amount of cellular energy?

Explain the physiological changes that occur when the hypothalamus stimulates the sympathetic nervous system. you can make a flowchart or a simple step process. be sure to include all chemicals/hormones secreted, glands involved and the functions of each chemical/hormone.