(a)[2]
Construct a food chain using these organisms. Do not draw the organisms.
(b(i))[4]
Complete Table 4.1 by counting how many of each organism type appear in the food web.
(b(ii))[2]
Predict what would happen to the number of dogwhelks and algae in this area after the starfish were introduced.
(c)[1]
State the term for organisms that obtain energy from dead or waste organic material.