Florida Biology EOC Practice Test 2025 – 400 Free Practice Questions to Pass the Exam

Biodiversity refers to the variety of life in a particular habitat or ecosystem, encompassing the different species, genetic variations, and the complex interactions between organisms and their environments. A characteristic of biodiversity is the presence of diverse species interactions within an ecosystem. These interactions can include predator-prey relationships, symbiotic partnerships, and competition among species for resources.

Such diversity enhances ecosystem resilience, stability, and productivity. For example, when numerous species share an ecosystem, they can fill various ecological niches and roles that contribute to the functioning of that ecosystem. This variety allows for more efficient resource use and greater overall ecosystem health, as different species can respond differently to environmental changes and stresses.

In contrast, the other options present characteristics that do not reflect the positive aspects of biodiversity. Increased genetic uniformity among species relates to a lack of diversity, which can make populations more vulnerable to diseases. Higher extinction rates are often associated with less diverse ecosystems that cannot withstand environmental pressures. Fewer species competing for resources suggests a diminished ecological interaction that can lead to reduced functioning and stability within an ecosystem. Thus, diverse species interactions are a hallmark of healthy, vibrant ecosystems and are a crucial aspect of biodiversity.