Tuesday, May 24, 2011

HBL Benedict Chin 2A206

1)How has/will human activities in the Amazon regions affect the Allomerus decemarticulatus ants?



Deforestation through human activities will destroy all the plants and trees. The ants rely on trees and plants to ensnare traps to catch their prey. Without the trees, there will be no ways for the ants to capture its prey. Hence, the population will decrease, with an inability to find food.


2) From the extract, identify the different symbiotic relationships and cite the organisms involved. 


Mutualism : The plant is protected by the ants, to capture the prey of the insects who want to eat the plant. The plant provides shelter for the ant. This is a mutual relationship. 


Commensalism: The ant and the mould. The ant uses the mould as a form of structured defense and offense, but in return, the mould gets nothing. The ant makes holes in the platform and put in places pieces of sooty mould, which would quickly grow around the structure and reinforce it.


Predation: The ants feed on their prey. The ants is the predator, whilst the insects are the prey.






3)For each type of relationship you have identified in (a), name another example of a pair of organisms depicting that relationship in nature.


Mutualism : Clown Fish and Sea Anemone. The sea anemone protects the crab using its sting, and the crab allows the anemone to feed on its remaining food. 


Commensalism: Crabs and aerial roots. The crabs climb on the aerial roots in mangrove and swampy areas to hide from predators, and the high tides. It is a form of shelter. The aerial roots do not get anything. 


Predation: The tiger and the deer. This is a form of predation.

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