Question

What is the need of special tissues or organs for transport of substances in plants and animals?

Answer 1

it helps in the better conduction of transportation between the phloem and xylem

Answer 2

Our body is designed in such a way that one organs or tissue aids the performance of other.

For example: in case of plants, when photosynthesis takes place and glucose is prepared in leaves, it is transported by some special tissues called Vascular tissues. In this case phloem carry the glucose and transport it to other parts of the plant.

In case of animals, oxygenated blood has to move throughout the blood from the heart and it is done by aorta.

If these organs and tissues are missing, then there will be no sync in the way body perform its function.