Biology Regents Practice Exam

A likely result of cutting down oak trees in an oak-hickory forest would be

1. Disruption of natural cycles

2. Conservation of these natural forest resources

3. Recycling of all the nutrients in the forest

4. Prevention of extinction of animals native to the area

The correct answer is: Disruption of natural cycles

Cutting down oak trees in an oak-hickory forest would likely cause a disruption of natural cycles. Forest ecosystems are highly interconnected; the removal of trees affects numerous biotic and abiotic components of the environment. Trees play a crucial role in processes such as photosynthesis, respiration, water cycling, and nutrient cycling. When oak trees are eliminated, their associated wildlife, soil health, and the overall ecological balance are disturbed. This disruption can lead to changes in microclimates, soil erosion, loss of habitat for various species, and alterations in the flow of nutrients in the ecosystem. For instance, without oak trees, specific species that depend on these trees for food or shelter may decline, which can have a cascading effect on other wildlife and plants in the area. In contrast, conservation of these natural resources, recycling of nutrients, and prevention of extinction may seem beneficial, but cutting down trees generally works against these goals, as it directly harms the forest ecosystem rather than conserving or effectively managing it.