You are provided with specimens: Z1, Z2, Z3, and Z4. (a) (i) Identify specimens Z1, Z2, Z3, and Z4 by scientific names (ii) Explain how Z1 and Z2 can be preserved for long-term use (iii) Give three reasons why farmers conserve Z1 and Z2 (b) (i) Explain how specimen Z4 infests livestock (ii) Mention two livestock that commonly host specimen Z4 (iii) Describe the relationship between Z3 and Z4 (iv) Outline three methods for controlling specimen Z4

1. Give three reasons why farmers conserve Z1 and Z2 (3 mk)
2. Outline three methods for controlling specimen Z4 (2 mk)

Upgrade to see model answers.

You are provided with specimens: AA1, AA2, and AA3. (a) (i) Identify specimens AA1 and AA2 (ii) State two roles of specimen AA2 in soil fertility (iii) Mention one danger of excessive use of specimen AA1 (b) (i) Identify specimen AA3 by its common name (ii) State two crops affected by the pest in specimen AA3

1. Mention one danger of excessive use of specimen AA1 (3 mk)
2. State two crops affected by the pest in specimen AA3 (4 mk)

Upgrade to see model answers.

You are provided with specimens: AB1, AB2, AB3, and AB4. (a) (i) Identify specimens AB1, AB2, AB3, and AB4 (ii) Give three uses of specimen AB1 on the farm (iii) State two safety precautions when handling specimen AB3 (b) (i) Mention two control measures for specimen AB4

1. State two safety precautions when handling specimen AB3 (3 mk)
2. Mention two control measures for specimen AB4 (5 mk)

Upgrade to see model answers.