Answer:
population education is an exploration of knowledge and attitude about population, the family.
Environment education is the process that allow individual to explore environmental issues, and take action to improve the environment
A Carcinogen is a cancer causing agent
Answer:
Start by running 30 minutes 5 times a week, and exercise each group muscle in those 5 times a week, then increase 10 minutes every week and the weight everyweek
Explanation:
The principles of specificity is to exercise a certain muscle with exercises special to grow and to grow the group muscle that you want to grow, and overload is the method of increasing the time of exercise and the load, by increasing time and weight so the muscle does not get used to the exercise that it is performing.
"safe, because it stretches the muscle and joint without causing pain"
Answer:
Which two mechanisms influence the force of cardiac contraction?
Answer: End diastolic volume and sympathetic nervous system stimulation
Explanation:
Blood pressure decreases during diastole, which occurs when the heart muscle relaxes. While, blood pressure increases during systole, which occurs when the ventricles contract, pushing blood out of the right ventricle.
The cardiovascular system connects a pump to blood vessels.
Cardiac contraction is the end result of action potentials and it can be defined as a unique ability of cardiac muscle to generate a force that is independent of any load or stretch applied.
End-diastolic volume is the amount of blood in the ventricles just before systole. A person’s end-diastolic volume tends to decrease with age.
End-systolic volume is used in the hospital to determine a measurement known as stroke volume, which is the amount of blood pumped from the left ventricle with each heartbeat.
Sympathetic stimulation causes the release of the neurotransmitter norepinephrine and it increases heart rate and myocardial contractility.
The sympathetic nervous system has a wide variety of cardiovascular effects, among which are, increased cardiac contractility, peripheral vasoconstriction.
Sympathetic nervous system stimulation causes vasoconstriction of most blood vessels.
