Question

question 1 - 1
invasive species can significantly impact biodiversity in an ecosystem.
which of the following statements best describes how the introduction of an invasive species can affect biodiversity?
invasive species typically increase biodiversity by introducing new species that enhance ecosystem complexity.
invasive species often lead to a decrease in biodiversity by outcompeting native species for resources and habitat.
invasive species have little to no effect on biodiversity, as they usually blend into the existing ecosystem.
invasive species only affect biodiversity in aquatic ecosystems, leaving terrestrial ecosystems largely unaffected.

Explanation:

Invasive species often outcompete native species for resources (like food, water, space) and habitat. This competition can lead to a decline in native species populations. A decrease in native species numbers reduces biodiversity. Option 1 is incorrect as invasive species usually do not enhance biodiversity in a positive, sustainable way. Option 3 is wrong because invasive species do have significant impacts. Option 4 is incorrect as invasive species affect both aquatic and terrestrial ecosystems.

Answer:

Invasive species often lead to a decrease in biodiversity by outcompeting native species for resources and habitat.