Temperature-sensitive nerve cells monitor the body temperature and provide information about its status to a temperature-control center in the hypothalamus, a part of the brain. The hypothalamus can bring about adjustments in body temperature by inducing shivering or sweating, among other things. In this control system the Skeletal Muscles and sweat glands are:

effectors

Explanation:

The skeletal muscles and sweat glands are effectors.

A typical feedback loop for the maintenance of homeostasis consists of 3 components, namely:

The sensor senses or collects information about the current status of processes and sends them to the control center. The control center reads the information and compares it to the normal range of operations. If it is within the normal range of operation, the control center does nothing. Otherwise, activates effectors which act to bring back the process to within the normal range of operation.

In the case of the body temperature, the skin act as the sensor, the hypothalamus is the control center, while the skeletal muscles and the sweat glands are the effectors. If the body temperature is abnormally high, the sweat glands are called into action through vasodilation of blood vessels. The body sweats and the evaporation of the sweat produces cooling. If the body temperature is abnormally low, the skeletal muscles are called upon to and the body shakes to generate more heat.

an adaptation is a change or process by which an organism takes to be better suited for its environment. for example; migration is a behavioral adaptation, this is needed because birds are not built to last extremely cold climates. there are different adaptations because there are different species needing to adjust to different things, bears don't migrate; they hibernate.