Answer:
B. Elbows should be locked when passing a volleyball
Natural active immunity arises from an exposure to antigens, while natural passive immunity <span>arises from the passage of antibodies across the placenta or breast milk. </span>A mother breastfeeding her baby is an example of passive natural immunity.
Passive natural immunity is type of immunity in which antibodies are passed from the mother to fetus or child. In case of breastfeeding antibodies are passes through the breast milk.
What I have found says it belongs to the <span> voluntary respiration </span><span>system.</span>
The six risk behaviors that lead to health problems? .
-Tobacco use
- Unhealthy dietary behaviors – Risky behavior that leads to unhealthy diets include not eating the right amounts of fruit or drinking fruit juices, not eating any vegetables, not drinking milk, drinking sugar based drinks such as sodas, not eating breakfast
- Sexual behaviors that lead to unwanted pregnancies or sexually transmitted diseases : In addition to the behaviors listed above, there are risk factors that contribute to unintentional pregnancies and diseases, such as having intercourse before the age of 13, having multiple partners, not using protection during intercourse, not being tested for HIV, drinking alcohol or using drugs during or before intercourse
-Alcohol or drug use:Risky behaviors regarding alcohol or drug use include having at least one drink during their lifetime, currently drinking on a regular basis, having five or more drinks in a row (binge drinking experiences), trying other drugs such as cocaine, inhalants, heroin, methamphetamines, steroids, or prescription drugs.
Inadequate physical activity – Risky behavior that leads to lack of physical health is not getting enough exercise, which includes the following risk factors: not doing any cardio activity in the last week, not attending Physical Education classes, playing video games or spending time on the computer for 3 or more hours per day, watching television for 3 or more hours per day.
-Behaviors that contribute to unintentional injuries and violence
