a) Tremendous surface area
b) Contain cell sap at higher concentration than the surrounding water
c) Root hairs have thin cell walls
d) Grow downward into the soil
Answer: d) Grow downward into the soil
a) Tremendous surface area
b) Contain cell sap at higher concentration than the surrounding water
c) Root hairs have thin cell walls
d) Grow downward into the soil
Answer: d) Grow downward into the soil