Explain two properties of water that are vital for aquatic life and explain how these arise

Ice floats on water as it is less dense- due to lattice structure of water molecules in ice. This insulates the water below the ice, preventing it from freezing to ensure marine life has suitable temperature. Water has large thermal heat capacity (lots of energy required to raise its temperature) as strong hydrogen bonds must be broken to increase temperature. Keeps temperature stable.

AA

Related Biology A Level answers

All answers ▸

Describe the process of phagocytosis and how antigen presentation leads to antibody production (9 marks)


What effect would a CO2 build up in the blood have on the body?


Describe the role of RUBISCO in plants and evaluate the importance of RUBISCO in the Calvin Cycle? (8 Marks)


Describe the differences between noncompetitive and competitive inhibition of enzymes.