Final answer:
The removal of just one species of large tree can lead to the collapse of an ecosystem. This can happen because humans use the trees as a resource, the absence of large trees causes soil erosion, and large trees provide habitats for many species. Therefore , the correct answer options is d)
Step-by-step explanation:
The collapse of an ecosystem from the removal of just one species of large tree can occur due to a combination of factors:
Humans use the trees as a resource: Humans rely on trees for various purposes such as fuel, building materials, and paper products. When large trees are removed, it disrupts the ecosystem's balance and affects other organisms that depend on those trees.
Without large trees, soil erosion increases and reduces productivity: Large trees help hold the soil in place, preventing erosion. When they are removed, there is an increased risk of soil erosion. This leads to a decrease in soil fertility and productivity, making it difficult for other plants and organisms to thrive.
Large trees provide habitats for many species: Large trees create complex habitats that support a wide variety of species. When these trees are removed, the loss of habitat can lead to a decline in biodiversity and the extinction of certain species.
In the case of Easter Island, the removal of the massive palm trees led to soil erosion, reduced productivity, and the loss of habitats, ultimately resulting in the collapse of the ecosystem.