(a) What is sexual reproduction?

(b) State five functions of the placenta and four functions of the umbilical cord of a mammal.

(c) List four types of placentation in flowering plants.

(d) State four conditions necessary for seed germination. 
 

(a)(i) Define ecological succession.
(ii) List four characteristics of ecological succession of plants.

(b) Explain four factors which affect population size

(c) State the adaptation of tapeworm (Taenia Solium) to its habitat in the gut of human. 

(a) Explain the following terms:
(i) Producer
(ii) Consumer
(iii) Community
(iv) Decomposer.

(b) List four characteristics each of:
(i) Trees of the Tropical Rain Forest IP
(ii) Trees/Shrubs of the Savanna.