The introduction of a new species into an ecosystem results in the decline of a native species. What is the likely cause?
Q1. The introduction of a new species into an ecosystem results in the decline of a native species. What is the likely cause?
Answer: The new species is a predator or competitor of the native species
Explanation: New species can outcompete or prey on native species, causing decline; other options either contradict the scenario or are less plausible.