It reinforces a change It is less common in the body It prevents a physiological change from being accomp Child birth is an example It moves a controlled variable further away from a stea
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- Which of this statement is INCORRECT regarding the function of hormones?a) Reproduction and sexual differentiationb) Maintenance of internal environmentc) Maintain body temperatured) Development and growthIn a negative feedback mechanism,a. the output cancels the input.b. there is a fluctuation above and below the average.c. there is self-regulation.d. a regulatory center communicates with other body parts.e. All of these are correct.create your own diagram by illustrating how the positive and negative feedback mechanism works. You should use specific condition in the body like (temperature regulation, osmotic balance and glucose levels). Make your diagram creative and presentable by making use of colors and other art materials and don’t forget to put labels on your work.
- Which of the following is an example of negative feedback?a. Uterine contractions increase as labor progresses.b. Insulin decreases blood sugar levels after a meal is eaten.c. Sweating increases as body temperature drops.d. Platelets continue to plug an opening in a blood vessel untilblood fl ow stops.What does negative feedback do? a. It establishes a set point. b. It changes the set point. c. It eliminates the set point. d. It reduces discrepancies from a set point.Which of the following is an example positive feedback? contractions in childbirth blood glucose body temperature body fluid pH
- Which of these homeostatic mechanisms in the body are examplesof positive feedback, and which are examples of negative feedback?Why?a. The adrenal glands produce epinephrine in response to a hormone produced by the pituitary gland in times of stress; the pituitary gland senses the epinephrine in the blood and stopsproducing the hormone.b. As the bladder fills with urine, pressure sensors send messagesto the brain with increasing frequency, signaling that the bladdermust be emptied. The more the bladder fills, the more messagesare sent.c. When you drink an excess of water, specialized cells in yourbrain, as well as stretch receptors in your heart, detect theincrease in blood volume. Both signals are transmitted to thekidneys, which increase the production of urine.PLEASE HELP! A. Homeostasis: Explain how this is a response to a changing environment: give specific examples. B. Negative feedback: explain how this works and give an example C. Positive feedback: explain how this works and give an example;Make a Venn Diagram using the provided information below NEGATIVE FEEDBACK MECHANISM • Most control mechanisms in the human body are negativefeedback mechanisms• A negative feedback mechanism DECREASES theintensity of the stimulus and eliminates it• When a variable is above or below set point, integratortriggers a move in the OPPOSITE DIRECTION to reachthe set valueEx. Body temperature, blood pressure, pH and CO2 levels,blood glucose levelsPOSITIVE FEEDBACK MECHANISM• A positive feedback mechanism ENHANCES the originalstimulus to ACCELERATE activity• Integrator triggers a move in the SAME DIRECTIONtriggering an “explosive” response• Positive feedback mechanisms are less commonEx. Blood clotting, childbirth (oxytocin)
- Which of the following is an example of a negative feedback loop? a) shivering in response to a cold b)platelets responding to a cut c) childbirth d) lactationWhat must a body control system do to maintain homeostasis? Hint: outline the components of a feedback loop and their functionsNegative feedback systems keep regulated variables within a normal range by ______________ any upward or downward shift in that variable, i.e. it means an _______________ response to a stimulus.