third one, all of the above
Alcohol users behave differently before the drug reaches their brain
Answer:
Option A) Oxytocin causes the uterus to contract ,further stimulating the receptors that signal the brain to release oxytocin.!
Explanation:
Positive feedback is a mechanism in which the output of a process increases the magnitude of the process which caused that output and this loop continues.
The most common example of the Positive Feedback Mechanism is the child birth. During child birth, the child pushes on the walls of uterus. This stimulates the pressure receptors which send signals to brain to release oxytocin. This oxytocin causes the wall of uterus to contract further, which is again detected by the pressure receptors. This sends signals to the brain again and this process continues in this loop.
Answer:
Oxygen-poor blood returns from the body to the heart through the superior vena cava (SVC) and inferior vena cava (IVC), the two main veins that bring blood back to the heart. The oxygen-poor blood enters the right atrium (RA), or the right upper chamber of the heart.
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Answer: Breakfast replenishes the stores of energy and nutrients in your body.
- Energy. The body's energy source is glucose. ...
- Essential vitamins, minerals and nutrients. ...
- Breakfast helps you control your weight. ...
- Breakfast boosts brainpower. ...
- A healthy breakfast may reduce the risk of illness. ...
- Breakfast helps you make better food choices.
Explanation: :)
