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grp2:Billy Paul Emily Esther Evania Rei

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Group 1:Irene,Camilla,Andrea,Isaac, Issac Choi, Carson

Difference:

N: Back to original point

P:Amplifies the process

E.g. Body temperature control, Blood glucose levels VS Child Birth

P : Leading to increased activity or effects

N : promoting stability and balance in a system

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Gp 5 Samuel , Gianne ,  Hazel ,Ben , Melody

In the cold room

body temperature decreases

The thermoreceptor present in the skin is stimulated by the low temperature

Send the nerve impulse to thermoregular centre of  the hypothalamus

Hypothalamus send the nerve impulse to the effectors

Effectors is stimulated To give response

Heat loss decreases and heat gain increases

Body temperature raise back to normal range

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Group 6: Leo,Lyman,Crystal,Hayley,Crystal

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Group 4: Mandy, Belva, Samantha, Kobe, Yan, Fiona

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Group 3: Kelly, Lily, Casey, Marcus, Vienna, Chloe

When the head of fetus pushes against cervix, the nerve impulses from cervix is transmitted to the brain. Then, the brain stimulated pituitary gland to secrete oxytocin. Oxytocin carried in bloodstream to uterus. Oxytocin stimulates uterine contractions and pushes fetus toward cervix

negative feedback:

reverse the initial change to normal level when sensing sth is high for example your body temperature, or hormones. In child birth case, if the mechanism of negative feedback is working, it would be even harder to push the baby out from the uterus

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Group No: Names

Group 1: Irene, Eva, Mike, Karen, Karry