The answer is viruses change their form when the immune system knows how to kill it and thats how they trick the immune system and viruses are much smaller than bacterias
<span>The best surface for a beginner to run on is smooth and soft so that it can cushion the stresses of running. For a more advanced runner, hills could be beneficial in improving their training and cardiovascular endurance.</span>
Explanation:
Explanation: Some spiritual beliefs systems reward taking a leap of faith. Others espouse modesty and humility. In general, risky behaviours like excessive use of dangerous, addictive drugs or commiting criminal or violent acts are damaging socially, emotionally, physically and maybe spiritually.
Answer: B. Go jogging
Osteoporosis refers to bone loss that is commonly experienced by women in their latter years. There are several on how women can prevent the effects of osteoporosis. Jogging is one of the ways to strengthen the bones thus, avoiding osteoporosis.