It allows certain molecules or irons to pass through by diffusion
The answer is In the tunica, cell divisions are perpendicular to the stem axis, giving rise to thick layers of <span>tissues covering the outside of the tip. </span>
The tunica is a membranous structure which covers the plant organs. It is responsible for the characteristics of leaf edges and margins in the monocots. During the plant growth, perpendicular cell divisions regarding the stem axis result in the membranous<span> structure outside of the tip.</span>
Answer:
True
Explanation:
Particle such as dust and pollen of 10 mm or larger are removed by the constant streaming of mucous propelled from the broncial and tracheal passage by the cilial beating at over 1300 times per minutes in a process known as mucociliary streaming
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