Mỗi đơn vị chức năng của thận gồm có A. Nang cầu thận, ống thận. B. Cầu thận, nang cầu thận, ống thận, C. Cầu thận, nang cầu thận. D. Ống thận, cầu thận.

but there is no

i guess you forgot putting it.

it is either c or d and i know for sure it is not a or b

answer;

c. a tree whose roots are surrounded by wet sand.

explanation;

water stress is an important factor limiting the growth and productivity of forests.water stress is the most often cited cause of poor survival and growth of woody landscape plants.

-insufficient soil moisture is the most common form of water stress, but excess moisture that leads to poor soil aeration (hypoxia) can also result in reduced plant vitality. a tree whose roots are surrounded by wet sand would be least likely to experience water stress.