Put the following biological structures in the correct order of organization, from smallest to largest: a. rose, shoot system, stem, xylem, tubular cell, meristematic cell b. meristematic cell, tubular cell, xylem, phloem, rose c. tubular cell, meristematic cell, xylem, stem, shoot system, rose d. meristematic cell, tubular cell, xylem, stem, shoot system, rose

D. Meristematic cell, tubular cell, xylem, stem, shoot system, rose

Explanation:

Among these structures cells are the smallest. There are two type of cells in this question, meristematic cell & tubular cell. Meristematic cells are rapidly dividing cells therefore they are unable to grow much so they are smaller than tubular cells. Xylem is a tissue (a group of cells meant for a specialized function) which is present inside stem and serves the function of transporting water in a plant. Stem is a bigger structure than xylem but smaller than shoot system because shoot system comprises stem plus lateral branches. Last comes rose which is a flower and there are a number of flowers in a rose plant so it is the biggest structure among all these.

you must remain stopped until the stop signal is retracted and the red lights are turned off. approaching traffic in the opposite roadway of a divided highway shall not be required to stop, even if the school bus has the stop-arm extended and the alternately flashing warning signal lamps on.