How do the flow of energy and the flow of nutrients differ?

4.4 Why would the next stage be to test the therapy in pigs and not directly in humans? (2)

The compounds produced in photosynthesis are the reactants that are needed for aerobic cellular respiration.

Florida bay is under stress from the lack of freshwater able to flow south through the Everglades.

1.5 The arrows in the diagram show the movement of oxygen and carbon dioxide between body cells and the blood in the capillaries. (1)         Right click on the button to open the diagram in a new window.           Through which process does the oxygen move from the blood to the cells?  

The type of sand provided for restoration or renourishment of our local beaches must take into consideration grain size to ensure turtles will nest on our beaches.

5.2 Identify the dependent variable. (1)

3.1 What range of blood pressure is found in the arteries? (1)

1.3 Which one describes the blood in vessels R and S correctly? (1)           R S A Deoxygenated Deoxygenated B Deoxygenated Oxygenated C Oxygenated Deoxygenated D Oxygenated Oxygenated    

INSTRUCTIONS   1. The answers you provide to the question paper, must be your own, original work. No copying from any source is allowed. No marks will be awarded for work that is copied.   2. Read all the questions carefully.   3. Use the mark allocation as a guide to how much information is required in your answers.   4. Answer all the questions.