PATHOLOGY

Detailed explanation-1: -The ruler should be placed on the ground next to the stem, and measure to the height of the tallest stem (ignore the leaves). If the plant has multiple stems, measure the tallest one. Record your measurement in meters.

Detailed explanation-2: -Tools that can be used to measure length include rulers, vernier calipers, micrometer screw gauges, measuring tape and odometers. The most precise tool used to measure length are vernier calipers.

Detailed explanation-3: -Measuring Objects using a Ruler: To measure the length of an object, place the zero hash mark of the ruler exactly along one end of the object. Align the object you are measuring along the edge of the ruler. Note the hashmark on the ruler along which the other side of the object ends.