Which of these conditions indicate positive feedback has occured? aBlood pressure decreases greatly; blood flow to the heart is inadequate, and blood pressure decreases. bHot temperatures increase your body temperature above normal; you sweat. cCold temperatures decrease your body temperature below normal; you shiver. dBlood pressure decreases; as a result, your heart rate increases.
Question
Which of these conditions indicate positive feedback has occured? aBlood pressure decreases greatly; blood flow to the heart is inadequate, and blood pressure decreases. bHot temperatures increase your body temperature above normal; you sweat. cCold temperatures decrease your body temperature below normal; you shiver. dBlood pressure decreases; as a result, your heart rate increases.
Solution
The condition that indicates positive feedback has occurred is option d: "Blood pressure decreases; as a result, your heart rate increases."
Positive feedback is a process that amplifies some change or output in a system. In this case, the decrease in blood pressure (the initial change) triggers an increase in heart rate (the amplified response). This is a compensatory mechanism of the body to restore normal blood pressure.
On the other hand, options a, b, and c are examples of negative feedback mechanisms, where the body responds in a way to counteract the initial change and maintain homeostasis. For example, in option b, when body temperature increases due to hot temperatures, the body sweats to cool down and bring the temperature back to normal. Similarly, in option c, when body temperature decreases due to cold temperatures, the body shivers to generate heat and restore normal temperature.
Similar Questions
Which of these are examples of negative feedback?Question 8Select one or more:a.The use of sweating and shivering to bring body temperature back to the correct set point (37°C)b.Platelets producing chemical signals to attract more platelets to a wound during blood clotting.c.Regulation of blood glucose levels by production of insulin and glucagon.d.Regulation of blood salinity by production of ADH to adjust level of water retention by kidneys.e.Oxytocin stimulation of uterine contractions during childbirth..
n response to an increase in body temperature, which ONE of the following acts as an effector in the thermoregulatory negative feedback system? sensory nerve fibers sweat glands hypothalamus thermoreceptors1 points
Which of the following is an example of an ‘effector’ for negative feedback in response to cold temperature? Which of the following is an example of an ‘effector’ for negative feedback in response to cold temperature? Hypothalamus integrating information Sweat glands producing sweat Thermoreceptors Skeletal muscles shivering
When a person is cold, their body uses the following negative feedback mechanisms to return the body to a temperature that is at homeostasis.Choose all that apply.
Which of the following statements is true concerning feedback mechanisms? Which of the following statements is true concerning feedback mechanisms? Negative feedback mechanisms work to prevent sudden severe changes within the body. Positive feedback mechanisms always result in excessive damage to the host. Blood glucose levels are regulated by positive feedback mechanisms. Negative feedback mechanisms tend to increase the original stimulus.
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.