Waec Model Questions Vol1 2023 Agricultural Science Question 1

Practice practical question 1 from the 2023 Waec Model Questions Vol1 Agricultural Science examination. This question covers Insect biodiversity, Sweep‑net sampling, Data analysis, Error sources, Integrated pest management .

Waec Model Questions Vol1 2023 Agricultural Science Practical
Topics: Insect biodiversity Sweep‑net sampling Data analysis Error sources Integrated pest management
Question 1 WAEC_MODEL_QUESTIONS_VOL1 • 2023 • AGRICULTURAL_SCIENCE • practical

A farmer wishes to evaluate the insect biodiversity in a 2 ha field using the sweep‑net method. Over five consecutive days (Monday to Friday) the farmer performed three 10‑minute sweeps each day and recorded the numbers of insects captured in three functional groups: herbivores, predators and pollinators. The data obtained are shown in the table below. | Day | Herbivores | Predators | Pollinators | |-----|------------|-----------|-------------| | Mon | 30 | 12 | 8 | | Tue | 25 | 15 | 10 | | Wed | 28 | 10 | 12 | | Thu | 32 | 14 | 9 | | Fri | 27 | 13 | 11 | Using this information, answer the following:

Question Parts

( a )
Calculate the average number of insects per day for each functional group.
( b )
State which functional group was the most abundant over the five‑day period.
( c )
Determine the percentage that predators contributed to the total number of insects captured.
( d )
Identify two possible sources of error inherent in the sweep‑net method used.
( e )
Suggest one management practice that could be adopted to enhance the pollinator population in the field.

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About This Question

This is Waec Model Questions Vol1 2023 Agricultural Science Question 1. It is one of the practical questions from the 2023 Waec Model Questions Vol1 Agricultural Science examination.

The question covers Insect biodiversity, Sweep‑net sampling, Data analysis, Error sources, Integrated pest management .

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