Tuesday, May 24, 2011

HBL Clement Chia 2A209

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

Human activities like deforestation have been carried out, emptying land for other uses. These activities would affect the Allomerus decemarticulatus ants, causing their population to decrease. This is because worker ants cut hairs from the stem of the plant they inhabit, and use the tiny fibers to build a spongy platform to catch unsuspecting prey. Therefore, with the deforestation, the Allomerus decemarticulatus ants would have no food to eat as deforestation would reduce the number of plants they inhabit, so they have a lesser chance of obtaining the "hairs" to catch prey. There will thus be a lack of food and also its habitat will be ruined through deforestation. Hence, human activities would affect the Allomerus decemarticulatus ants

3a) From the extract, identify the different symbiotic relationships and cite the organisms involved.

Commensalism: Allomerus decemarticulatus ants and the plant which they inhibit.The ants will cut hairs from the stem of the host plant and use the tiny fibres to build a spongy platform, in order to trap their preys, benefiting the ants while the plant is not affected.
Predation: Allomerus decemarticulas ants and their prey (insects).
Mutualism : The ants protect the plant they inhibit and the plants provides the ants with materials for them to build traps to catch their prey.

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

Mutualism - Clownfish & Sea anemone
Predation - Owl and mouse
Commensalism: Barnacles and Whale

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