Anormal range of 60-80 mm hg is the standard for which blood pressure measurement?

the answer would be roots! roots are the parts of the plant that are underground, and that's how they'd anchor the plant. the stem is above the sol, which doesn't with anchoring. hope this !

teens need 8-10 hours of sleep. it kind of depends on what time you get up. but prob around 10 or 11 p.m. or 11 or 11: 30 p.m.