Which is an appropriate justification for this the roots of the aquatic plant hydrilla are poorly developed and lack xylem tissue.

The most appropriate justification for the roots of the aquatic plant hydrilla to be poorly developed and lack xylem tissue is to reduce the intake of water to the plant. Therefor the best answer choice is…

C) As hydrilla is aquatic in nature, the roots do not have to search for water, and there is no need for xylem to absorb water because the plant is surrounded by water.

Please see image attached.

I hope it helps, Regards. 

trachea, alveoli, lung capillaries, arteries