Thermoregulation is a specific type of homeostasis where certain higher animals must maintain their internal body temperature. thermoregulation and other control mechanisms all use feedback to maintain control. a) excited b) negative c) neutral d) positive

The correct answer is option B) negative.

The temperature in the body is controlled by the negative feedback. In the negative feedback regulation, the increase in a factor send the signals to reduce the effect. in the temperature regulation, the increase in the temperature causes the hypothalamus to release the signals, which lead to the decrease in the temperature.

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."