Day: August 24, 2022

.1 Biology Paper 1 (231/1) Answer all the questions. 1 State the importance of each of the following in living organisms: (a) nutrition(1 mark) (b) excretion.(1 mark) 2 (a) What is meant by the term seed dormancy?(1 mark) (b) State three causes of seed Read More …

Paper 3 (PRACTICAL) 1 Using the pictures of animals provided below, complete the construction of the dichotomous key by filling the blank spaces. (13 marks) 1. (a) Animals with a backbone………………………………… go to 2 (b)Animals without a backbone………………………………. 2. (a) Read More …

SECTION A (40 marks) Answer all the questions in this section in the spaces provided. 1. The diagram below illustrates a blood capillary surrounding a structure for gaseous exchange in human beings. (a) Name the gaseous exchange structure.(1 mark) ……………………….. (b) Read More …