Question

why do plants and animals have different types of 'tissues'​

Answer 1

Because plants and animals have different structures and designs .

They have to carry out different functions as well.

For eg plants need to absorb water thus they have xylem tissue which is absent in animals.

Answer 2

plants have stationery thus their supportive tissue is is made up of dead cells. Animals move, hence they possess living cells to provide energy for movement.