Increased concern over the number of heat related illnesses among football players has led to a possible change in uniform design. shoulder pads were designed that constantly blew cool, dry air underneath the shoulder pads. tests showed that the use of the device during rest and recovery periods resulted in a reduction of body temperature and heart rate. this new device would the athlete to

Ans: maintain homeostasis

Homeostasis is any self-regulating process by which biological systems tend to maintain stability while adjusting to conditions that are optimal for survival. It is the stable state of an organism and of its internal environment. Maintenance of homeostasis usually involves negative feedback loops. These loops act to oppose the stimulus, or cue, that triggers them. The stable condition is the condition of optimal functioning for the organism, and is dependent on many variables, such as body temperature and fluid balance, being kept within certain pre-set limits.

humans are now responsible for causing changes in the environment that hurt animals and plant species. we take up more space on earth for our homes and cities. we pollute habitats. human activity often changes or destroys the habitats that plants and animals need to survive.

there is no

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