The roots of a plant are usually located underground and composed of which of the following tissue systems?

The tissues of a plant are organized into three tissue systems:

1.     the dermal tissue system

2.     The ground tissue system.

3.     The vascular tissue system.

The roots of a plant are usually located underground and composed of Ground Tissues. Roots are present in a central column.

It is a thin continuous cylinder made up of Meristematic cells located between the wood (secondary xylem) and bark (secondary phloem) of roots and stems called in a central column. The Meristematic cells divide and add to the wood and inner bark.

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.