Answer:
a) the process in which a force of pulling causes the upward movement of water in the xylem vessels
b) the smallest blood vessel in the body which conveys blood between the arterioles and venules.
c) loss of turdgitdity in a plant due to excessive water loss through transpiration.
d) when water is secreted from hydathodes (small pores) on the leaf margins of plants at night .
