In the last one hundred years, the percentage of total income spent by an average family on food and clothing has (increased/decreased/stayed the same). choose the correct answer.

True or false mucous membranes destroy pathogens on the outer body surface, at body openings.

When trimming plants and vines: a.burn all the poisonous plants b.touch poison oak and poison sumac with your bare hands c.wear gloves d.cut as quickly as possible

According to proper standing posture, from a side view, which parts of the body should be aligned? a. ear, shoulder, hip, knee, and ankle b. stomach, hip, knee, and ankle c. nose, shoulder, hip, knee d. ear, shoulder, fingers, ankle