Question

value: 2
why might a large - scale environmental change, like climate change, disrupt the balance in an ecosystem?
○ a. it may introduce new species that compete with native species.
○ b. it can cause a shortage of resources for some organisms
○ c. it can lead to a decrease in predator populations.

Explanation:

• Option a: Introduction of new species competing with native ones is more related to invasive species introduction rather than large - scale environmental change like climate change.
• Option b: Large - scale environmental changes such as climate change (e.g., changes in temperature, precipitation patterns) can alter habitats. This alteration can lead to a shortage of resources (e.g., water, food, suitable living space) for some organisms. For example, if a region becomes drier due to climate change, plants that require more water may not be able to grow, which in turn affects herbivores that rely on those plants for food.
• Option c: While large - scale environmental change can have impacts on predator populations, it is not the most direct and common way that large - scale environmental change (like climate change) disrupts ecosystem balance compared to resource shortages.

Answer:

b. It can cause a shortage of resources for some organisms