Which of the following statements about the cytoskeleton is correct? choose all that apply.
a. the cytoskeleton is made of a mixture of protein and carbohydrate.
b. the cytoskeleton provides shape and support to eukaryotic cells, particularly animal cells.
c. cytoskeletal elements can be found in the cytoplasm and in at least one organelle.
d. the cytoskeleton forms the cell wall of plant cells.
e. cytoskeletal elements are rigid, and once established are not easily changed.
f. the cytoskeleton is made of a mixture of protein and lipid.

a- all cells come from pre-existing cells

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.