Why are xylem and phloem called complex tissues?

Look at as shown. The top three rows are labeled “Primary growth” because these are found in the primary plant body, the body of an herb. The third row of the figure has five boxes with the five types of mature tissue found in the primary plant body. What are the five tissues?

Thick cell wall material that provides sturdiness to plant parts is called ____________ tissue. Plant stems with vascular tissue dispersed in the ground tissue are called _____________. Pore openings in plant leaves are called ______________. What soil element is necessary for the synthesis of plant proteins? ______________. Plant transpiration takes place in what vascular tissue? ______________. A plant zygote with 3 sets of chromosomes is called a ___________ cell. In asexual plant reproduction, each new plant is called a ____________. A plant hormone responsible for fruit ripening is called ______________. A photoperiodic plant cycle which repeats every 24 hours is called a _________________.  Plant response to sunlight is called _________________.

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