(a(i))[2]
Identify the letters of the two test-tubes in Fig. 5.1 that demonstrate that oxygen is necessary for germination.
(a(ii))[2]
Use the information in Fig. 5.1 to identify the best conditions for preventing germination. Tick two boxes. cold dry light low carbon dioxide concentration low pH
(b(i))[2]
Predict and explain how the shape of plant Y will differ from the shape of plant X after 5 days of growth.
(b(ii))[1]
State the name of the tropic response that would be seen in plant X in Fig. 5.2 after 5 days.
(b(iii))[2]
Suggest and explain the advantage to a plant of tropic responses in shoots.
(c)[1]
State the position plants occupy in a food chain.