Free body diagrams do not need to be drawn to scale but it can sometimes be useful if they are. It is important to label each arrow to show the magnitude of the force it represents. The type of ...

Thyroid hormones help regulate the body's metabolic rate, which is a measure of how efficient it is at using energy. When the thyroid isn’t producing enough of certain hormones, metabolism slows down; ...

Hormones are small molecules or peptides that act in signalling between one cell or cell set and another. They are generally involved in high-level processes of an organism such as growth ...