Question

Why do species turn invasive in a foreign habitat?

• A. Species co-evolve in foreign habitats
• B. There are no natural evolutionary constraints
• C. There are no native species
• D. Due to unforeseen ecological factors

Answer 1

The correct option is B There are no natural evolutionary constraints

Species tend to coevolve in their natural habitats. Therefore the natural habitats of organisms contain the evolutionary constraints that keep them in check, usually in the form of a predator or a parasite. In foreign habitats, these natural constraints are absent and hence, species turn invasive.