Question

Mr. Shepherd is at a football game on a cold day. How does his body maintain a relatively constant body temperature? What is this process called?

Answer 1

Mr. Shepherd's body maintains a constant temperature through homeostasis, mainly by constricting blood vessels, reducing sweat gland activity, and shivering to produce heat.

Step-by-step explanation:

Mr. Shepherd's body maintains a relatively constant temperature through a process known as homeostasis. This involves a series of physiological responses that work to keep internal conditions within a narrow and safe range. When exposed to cold, the body reacts through several mechanisms:

Blood vessels constrict to reduce blood flow to the skin and extremities, this minimizes heat loss.

Shivering occurs, which is an involuntary contraction of muscles, producing heat as a by-product of increased metabolic activity.

Sweat glands reduce their activity, so there is less evaporative cooling on the skin's surface.

These responses help to conserve heat and elevate the body temperature back towards its normal range, maintaining the 'steady state' necessary for optimal physiological function. In more active situations, such as exercising, the body's temperature can rise due to increased metabolic activity, which is also counterbalanced by these homeostatic mechanisms.

Answer 2

1. Mr. Shepherd maintain a relative constant body temperature by preventing loss of heat.

2 This process is called HOMEOSTASIS

Step-by-step explanation:

Homeostasis is the process whereby living organisms maintain a stable internal environment despite changes in conditions to the external environment. It is necessary that the body undergoes this process in order to guarantee survival.

According to this question, Mr. Shepherd is at a football game on a cold day. This means that in order to maintain a stable internal temperature, the body must preserve heat in the body and prevent its loss via sweating.