- Food Chain
- Crop Pest
This is the dependence of one person on another;or one living thing upon another.
Plants depends on animals in the following ways:
- Carbon dioxide
- Animal waste
Animals depends on plants in the following ways:
Plants depends on other plants for the following ways:
Animals depends on other animals in the following ways:
Examples of Insectivorous plants
- Venus flytrap
- Cobra lily
- Picher plant.
A food chain is a relationship in which living things depends a feed on one another directly.
Examples of a food chain:
- Grass ----> Grasshopper ----> Chicken ----> Hawk
(Producer). (Primary cosumer). (Secondary consumer). (Tertiary consumer)
- Algae---->Small fish----->Big fish---->King fish
NB:Learners are always asked what happen if one group is exempted:
What will happen if all chicken died because of a disease kin the first example;
- Grasshopper will increase since what feeds on them are dead
- Grass will reduce since grasshoppers are more in number
- Hawk will decrease since their food is not there
A pest is a troublesome or harmful thing,animal or insect.
They damage crops
Pests are classified into two ie
- Field Pests
- Stalk borer
- Weaver birds
- Storage pests
|Pest||Crop attacked||Type of damage caused|
|Stalk borer||maize,sorghum,sugar cane||
|Birds e.g weaver bird||maize,rice,millet,sorghum.||
- Scaring .
- Trapping .
- Hand picking.