What is the primary aim of agriculture?
To provide adequate food for an ever-increasing human population.
What system of classification uses binomial nomenclature?
Botanical classification.
What are examples of non-flowering plants?
Thallophyta, Bryophyta, and Pteridophyta.
Name two examples of flowering plants.
Angiosperms (e.g., maize) and gymnosperms (e.g., pines).
Define food crops.
Crops grown mainly for human consumption, such as maize and yam.
What are examples of cash crops?
Cocoa, coffee, and rubber.
What is the importance of cereal crops?
They are monocotyledonous and rich in carbohydrates.
Give examples of vegetable crops.
Spinach, carrots, cabbage, and tomatoes.
What are legumes, and why are they important?
Plants rich in protein, like cowpeas and groundnuts.
What do beverage plants provide?
Stimulants or drugs, e.g., coffee and tea.
Define perennials.
Plants that persist for more than two years and yield every season, e.g., cocoa.
What is biological pest control?
Using natural enemies to manage pest populations.
List two effects of bush burning.
Destruction of organic matter and exposure of soil to erosion.
What does overgrazing cause?
Soil erosion and poor vegetation growth.
How does deforestation affect soil?
It reduces humus and water infiltration.
What are the benefits of tillage?
Loosens soil for better aeration.
What is a selective herbicide?
A chemical that targets specific weeds without harming crops.
Give an example of an oil plant.
Oil palm.
What are fiber plants used for?
Making ropes and textiles, e.g., cotton.
Mention one application of biology in agriculture.
Creation of pest-resistant plants.
1 / 20