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 ▸How to go about writing an essay in A level biology (for exampe: The importance of proteins in the control of processes and responses in organisms)
Draw a genetic diagram to show how unaffected parents could have a son with Haemophilia but also other children who do not suffer from the disease.
Name 3 possible functions for a membrane protein, and name an example for each.
A myelinated axon conducts impulses faster than a non-myelinated axon.