Interdependence Among Living Organisms and the Environment

Interdependence Among Living Organisms And The

Environment

Interdependence Among Living Organisms And The

EnvironmentMuhamad Khairul Bin Jamaludin

Interdependence among living organism


• Species – a group of organism with common characteristics that can breed among themselves to produce offspring.



• Population – a group of organisms of the same species living together in a habitat.

A place where an organisms lives and

reproduce



• Ecosystem – interaction between living things and non living things in a habitat.

Interaction Interaction

Prey-predator Symbiosis Competition

Commensalism

Mutualism

Parasitism

Prey-predatorPrey-predator

• Predator – is an organism that killed and eat another organism

• Prey – organism that is eaten

Competition Competition

• Interaction between organism in the same environment to competing the:

• Food, shelter, light, water, space, minerals and mates.

Commensalism Commensalism

• one get benefit but host does not get any benefit.

Mutualism Mutualism

• Both organism get benefit.

Parasitism Parasitism

• One organism get benefit but host is harmed.

Importance of interactionImportance of interaction

• Maintain the balance of ecosystem• Replace the death organism • Reduce the size of population

Biological controlBiological control

• Natural way to control the size of a population of organisms (pest).

• uses owls and snakes to control the reduce the number of rats

eat

eat

Biological controlBiological control

• excessive use of pesticide is costly, which causes pollution and increases the resistance of the pest

Food WebFood Web

• Energy is transfer by the food web.• Food web is a combination more than one

food chain• Food chain:

Producer Primary

Consumer Secondary Consumer

Tertiary Consumer

Can make their own food

Food WebFood Web

Consist of 4 food chain

Producer (1000)

Primary consumer (100)

Secondary consumer(10)

Tertiary Consumer

(5) Energy being

transfered

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Interdependence Among Living Organisms and the Environment