(a) Explain the term adaptation in relation to the mode of life of an organism.

(b) Explain how each of the following structures adapt the organisms that possess them to their modes of life:
(i) succulent leaves in Aloe sp
(ii) succulent stems and reduced leaves in cactus plants
(iii) short, strong beaks in fowls
(iv) counter shading in fish
(v) tiny scale leaves on needle-like branches of pine trees.

(c)(i) What is population?
(ii) State five effects of overpopulation on a community.