Keratin provides a. waterproof
b. insulation
c. protection from UV radiation
d. pigmentation ​

What does the xylem do? stores the glucose captures the sunlight absorbs oxygen into the leaf carries water from the roots to the leaves

Which of the following is the correct formula for copper (i) sulfate trihydrate? cuso4 · 3h2o cuso4(h2o)3 cu2so4(h2o)3 cu2so4 · 3h2o

What is the work done by the electric force to move a 1 c charge from a to b?