Answer: Refractory period of the cardiac action potential
Explanation:
Unlike the skeletal muscle which can be reactivated before it reaches a contraction, cardiac muscle must wait before it is almost completely relaxed to be activated again (because of its long refractory period), so one cannot make an increase in strength of contraction with a high frequency of stimulations.
Answer:
The calories in sugar sweetened beverages can contribute to weight gain and provide little to no nutritional value. Sugar-sweetened beverages do not fill you up the same way that food does. Those extra calories can lead to other health risks including obesity, tooth decay, heart disease and type 2 diabetes.
Explanation:
Answer:
When you breathe in, or inhale, your diaphragm contracts and moves downward. This increases the space in your chest cavity, and your lungs expand into it. The muscles between your ribs also help enlarge the chest cavity. They contract to pull your rib cage both upward and outward when you inhale.
Explanation:
Answer:
Raise the child with your partner or parental help.
Explanation:
Now a days there are a lot of teen moms that raise a child alone since the partner has left them and get help from their parents or some just raise the kid alone. Its actually a choice you have to make your own.
Hope this helps :)
Answer:
Whole grains contain all parts of the grain kernel. ... But refined grains, like the flour used to make white bread, have had the fiber-dense bran and the nutrient-rich germ processed out, leaving only the starchy endosperm.
Explanation:
