Answer: People with chlamydia don't always have symptoms.
About 80% of women and 50% of men won't show signs of infection. If symptoms start, they will generally show up within 1 to 3 weeks after exposure, but can take as long as 6 weeks to appear.
Explanation:
Answer: Circulatory
Explanation:
Cardiorespiratory Fitness refers to the ability of the respiratory and circulatory systems to deliver oxygen to skeletal muscles during exercise. Exercise contributes to these systems being more efficient by enlarging the heart muscle, allowing a greater pumping of blood. Exercise is not only beneficial to the respiratory system, but the heart also benefits from this.
Cardiorespiratory Fitness has a series of benefits for the well-being of the person. Among its benefits is the reduction of diseases such as lung cancer, heart disease, stroke, and others. For these benefits to begin to be noticed, it is necessary to do physical activity 3 to 5 times a week.
Answer:
in controlled experiment an independent variable is systematically manupulated and dependent variable is measured ; any extraneous variables are controlled
