Chapter4.2 Interaction Among Living Things
Types of interactions
Prey-predator
Symbiosis
Competition
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© Amazing Tunas Enterprise (001573407-U)TRG – Science Form 2
Chapter 4 : Interdependence Among Living Organisms and the Environment
Chapter4.2 Interaction Among Living Things
Prey-predator
A predator is an organism which hunts and eats another living organisms
A prey is an organism which is being hunted and eaten by predator
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© Amazing Tunas Enterprise (001573407-U)TRG – Science Form 2
Chapter 4 : Interdependence Among Living Organisms and the Environment
Chapter4.2 Interaction Among Living Things
Symbiosis
Commensalism
Parasitism
Mutualism
One organism always benefits by receiving food,a place to stay and shelter; the other organismmay benefit, disadvantage or is not affected
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© Amazing Tunas Enterprise (001573407-U)TRG – Science Form 2
Chapter 4 : Interdependence Among Living Organisms and the Environment
Chapter4.2 Interaction Among Living Things
Symbiosis
Commensalism is a relationship between two organisms, one organismbenefits from the other while the other organism is not adversely affected
Commensalism
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© Amazing Tunas Enterprise (001573407-U)TRG – Science Form 2
Chapter 4 : Interdependence Among Living Organisms and the Environment
Chapter4.2 Interaction Among Living Things
Symbiosis
Parasitism is a relationship between two organisms, only one organismcalled parasite gets benefits from the other organism called the host
Parasitism
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© Amazing Tunas Enterprise (001573407-U)TRG – Science Form 2
Chapter 4 : Interdependence Among Living Organisms and the Environment
Chapter4.2 Interaction Among Living Things
Symbiosis
Mutualism is a relationship between two organisms, both organisms willget benefits from each others
Mutualism
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© Amazing Tunas Enterprise (001573407-U)TRG – Science Form 2
Chapter 4 : Interdependence Among Living Organisms and the Environment
Chapter4.2 Interaction Among Living Things
Competition
Animals compete for food, water, living space and mates for reproduction
Plants compete for sunlight, water, air, mineral salts and living space
Competition occurs when organisms compete for the limited resources
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© Amazing Tunas Enterprise (001573407-U)TRG – Science Form 2
Chapter 4 : Interdependence Among Living Organisms and the Environment
A predator usually has special features that help them hunt their prey, such as long, sharp teeth or claws
A prey usually has special features to run away or protect themselves from the predator
Symbiosis refers to the close relationship between different organisms that live together
In the competition, stronger organisms usually will successful in controlling their territory whereas the weaker organisms will leave the area or die
Biological control is a method using predator to destroy certain prey, to control the population of an organism
Q.R.4.2 Quick Refresh
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© Amazing Tunas Enterprise (001573407-U)TRG – Science Form 2
Chapter 4 : Interdependence Among Living Organisms and the Environment
