Human Activity and Ecosystems Online Test

Boats do cause stress on freshwater lakes through multiple mechanisms. They produce pollution from fuel and oil, waves that erode shorelines and disturb aquatic habitats, and noise that disrupts wildlife. This makes 'True' the correct answer.

Extinction is primarily driven by human activities that destroy habitats or reduce populations directly, such as excessive hunting and fishing. Mitosis and apoptosis are biological cellular processes, not causes of species extinction.

Habitat destruction involves the removal or alteration of an environment to the point where it can no longer support the native species. Cutting down trees for a subdivision is a clear example of this.

Zebra mussels are a classic example of an invasive species in North American waterways, where they outcompete native species for resources. Note: The option contains a spelling error (muscles vs mussels).

Pollution is a major human-driven factor that degrades ecosystems and reduces biodiversity. Note: The option contains a spelling error (polution vs pollution).

A successful or functional environment requires both living (biotic) and non-living (abiotic) components to sustain life and nutrient cycles.

Biodiversity refers to the variety of life in the world or in a particular habitat or ecosystem, measured by the number and variety of living things.

Sustainable use involves managing natural resources in a way that meets current human needs without compromising the ability of future generations to meet their own needs.