Apc I think in my opinion
Answer: elderly male on a ventilator machine to assist
with breathing
Explanation: Because when men are like old they sometimes stop breathing and they can die but the ventilator helps them breath.
Answer:
B. The ultrasound identifies blood flow through the umbilical cord.
Explanation:
Before amniocentesis, a routine ultrasound is valuable in locating the placenta, locating a pool of amniotic fluid, and showing the physician where to insert the needle. Color Doppler imaging ultrasonography identifies blood flow through the umbilical cord. A routine ultrasound does not accomplish this.
Answer:
The correct answer is - option C.
Explanation:
A positive feedback loop is a system that occur in nature when production of a specific reaction leads to increase in its own production or reaction. Oxytocin is an example of the positive feedback loop as the release of its higher concentration.
Contraction of the uterus cause the release of the oxytocin that leads to more contraction which lead higher concentration of the hormone. So the positive feedback loop cause the shift in the system, far from the equilibrium.
Thus, the correct answer is - option c.
