roles of water

Question 1

role 1

Answer 1

liquid medium for living things and for the chemistry of life

Question 2

role 2

Answer 2

• aquatic environments are slow to change temperature

- bulky organisms have stable temperatures

Question 3

role 3

Answer 3

evaporation causes marked cooling, much heat is lost by the evaporation of a small quantity of water

Question 4

role 4

Answer 4

• water adheres to the walls of xylem vessels as it is drawn up the stem to the leaves from the roots
• water can be lifted by forces applied at the top, and so can be drawn up the xylem vessels of a tree trunk by forces generated in the leaves