_WASSCE 2021 BIOLOGY TRIAL QUESTIONS POWERED BY MR LUKE_
_JOIN VVIP GROUP BEFORE 30TH june WASSCE START SOON...._
MR LUKE *0593635373*
1. a) Name two types of aquatic habitats. [2 marks] For each habitat you named in (a) above, state i. two plants; ii. two animals, found in the habitat. [8 marks]
b) Explain briefly the following terms: i. Allele; ii. Phenotype. [4 marks]
c) State the feeding habit of the following organisms and two modifications each that help them adapt to it. i. Mosquito larva; ii. Tapeworm. [8 marks]
d) Explain how sewage causes water pollution [6 marks]
e) List two processes that release carbon to the environment [2 marks]
PAPER 3 (PRACTICAL)
1 a) i. Identify the specimens labelled A to E [5 marks] ii. State the role of each specimen you have identified. [5 marks] iii. Mention the advantages they have derived from living together as a group. [2 marks]
b) Observe specimens F and G carefully and use them to answer the questions that follow.
i. Classify specimens F and G under the headings phylum and class. [4 marks] ii. Make a labelled drawing 8-10 cm long of the lateral view of specimen G. [11 marks] iii. State three adaptations of specimen G to its environment. [3 marks]
